Guidelines for the implementation of experimental tasks oge in physics. Instructions for the preparation and conduct of the OGE in the subject "Physics During the exam, it is prohibited

ORDER
preparation and conduct of the state final certification in the form of the main state exam (OGE) for educational programs of basic general education in the city of Sevastopol in 2017

FEATURES OF CARRYING OUT THE OGE IN A FOREIGN LANGUAGE, PHYSICS,
COMPUTER SCIENCE AND ICT, LITERATURE

OGE in a foreign language (FL)

In order to optimize the time spent in the PES of participants in the OGE in FL, the DO decides on the choice of one of the schemes for organizing the exam for all participants in the OGE in FL:

conducting an exam in FL (simultaneously IF and the oral part (hereinafter referred to as UC) (section "Speaking") on one of the days provided for by the schedule;

- conducting an exam in FL (simultaneously IF and UC section "Speaking") on two days, provided for by the schedule;

- conducting the written part of the exam on one day, and the oral part (section "Speaking") - on another day, provided for by the schedule.

Conducting the OGE in FL in writing.

When conducting the OGE in a foreign language, the exam includes the section "Listening", all tasks for which are recorded on audio.

Audiences allocated for the section "Listening" are equipped with audio playback facilities.

To complete the tasks of the "Listening" section, technical specialists or organizers set up the audio playback tool so that it can be heard by all students. The audio recording is listened to by the students twice, after which they proceed to the implementation of the ER.

OGE in FL (section "Speaking").

Order-9 does not provide for the refusal of students to participate in the OGE in a foreign language (section "Speaking").

Passing the OGE in a foreign language implies the obligatory participation of students in the performance of written tasks, as well as tasks in the "Speaking" section.

When conducting the OGE in a foreign language (section "Speaking"), oral answers (hereinafter referred to as MA) to tasks are recorded on audio media.

Conducting the OGE in a foreign language (section "Speaking") includes the implementation of 3 tasks:

- reading aloud a short text (preparation time - 1.5 minutes, task completion time - 2 minutes);

– participation in a conditional dialogue-interrogation (questions of the dialogue are recorded on an audio carrier, the response time for each question is no more than 40 seconds);

- a monologue statement on a specific topic based on a plan (preparation time - 1.5 minutes, task completion time - 2 minutes).

The RO time is 15 minutes per respondent. Each subsequent task is executed after the completion of the previous task. All responses are audio-recorded.

The use of drafts by OGE participants in a foreign language (section "Speaking") is prohibited by Order-9.

For the oral part of the exams, two types of audiences are used:

– the training room, in which the participants are waiting for their turn to take the exam, fill in the registration fields BO-1, no additional equipment is required for the training rooms;

- the audience where the participants are instructed, KIM are issued, the participants transfer the number of the KIM to the corresponding field BO-1, in the audience the means of audio recording and playback of audio recordings must be prepared.

Technical specialists or organizers in the audience set up digital audio recording facilities for high-quality recording of the RO.

In the preparation and holding classrooms, there must be at least 2 organizers in each classroom. On the day of the UC exam, a technical specialist must be present at the PES.

No more than 25 students can be present in the training room at the same time (seating for two people per desk is allowed).

The responsible organizer in the preparation room and the responsible organizer in the holding room receive examination forms for the participants of the exam and IC with CMM, respectively, at the PES headquarters.

Issuance of examination forms to the first group of participants in the training room is carried out no earlier than 10.00 am on the day of the exam.

When a participant fills out the exam in the preparation room of the registration fields BO-1, the number of the audience and the number of the KIM are not indicated.

Students are invited to the audience to receive the task of UCH KIM and the subsequent recording of oral answers to the tasks of KIM.

Exam participants are escorted from the preparation room to the conducting room by the organizer outside the room.

Each group of participants enters the audience only after all participants from the previous group have completed the exam (it is recommended that a maximum of 4 OGE participants can pass through one workplace in the audience per day).

In the audience, the participant takes a workplace.

The organizer in this audience conducts briefings:

– on filling in the fields for the number of the audience of the holding and the number of the CIM;

- about the time to prepare and complete tasks.

The organizer also warns the participant that when performing task 2 (conditional dialogue-questioning), it is necessary to answer the question immediately after listening to it, then listen to the next question and answer. The participant should be informed that there is no time to prepare for answering the questions in task 2. Before starting to answer the questions, the participant pronounces the unique identification number of his work into the audio recording device in PR.

Before answering each task, the participant says the number of each task in PR.

After completing the 1st task, the organizer must turn on the playback of the audio recording of the 2nd task (conditional questioning dialogue).

The participant sequentially listens and answers each question in the audio recording, and then proceeds to prepare and complete the 3rd task.

After 15 minutes, the organizers in the audience announce the end of the exam and turn off the audio recording of the answer.

The organizer (technical specialist) saves the audio recording of the participant's response under a specific code - PES number_ audience number_unique identification number of the work .

The participant signs in the statement of the exam.

After all participants in the group in the holding room have completed their work, a new group of participants is invited to the holding room from the waiting room.

The organizers control the preparation time for tasks and control the time for completing tasks. If the preparation time for the task or the time for answering the task has expired, the organizer must inform the participant about this. The technical specialist or organizer gives the student to listen to the recording of his answer and make sure that it was produced without technical failures. If a technical failure occurred during the recording, the student is given the right to take the "Speaking" section again.

In the event of a technical failure of the equipment or the low quality of the audio recording of the response of the OGE participant in foreign language after completing the tasks of the “Speaking” section, the retake of the UCH exam is possible on the same day or at additional times set by the schedule.

At the end of the exam by all participants, audio recordings with answers are collected by a technical specialist in catalogs by the classroom and sent to the RCSI for examination of answers on a removable electronic medium.

OGE in physics

The OGE in physics includes an experimental task performed on real equipment.

The list of additional materials and equipment, the use of which is allowed at the OGE in physics, is approved by order of the Ministry of Education and Science. A non-programmable calculator (hereinafter referred to as NPC) is used for each student and experimental equipment.

The exam is held in physics classrooms. If necessary, you can use other rooms that meet the requirements of safe work when performing experimental tasks of the ER. At the exam, there is a specialist in physics who conducts a safety briefing before the exam and monitors compliance with the rules of safe work while students work with laboratory equipment.

Sets of laboratory equipment for performing laboratory work are formed in advance, before the exam. For the preparation of laboratory equipment in the PES, one or two days before the exam, the numbers of the equipment sets that will be used in the exam are reported. The list of equipment sets for performing experimental tasks was compiled on the basis of standard sets for frontal work in physics, as well as on the basis of the GIA-laboratory sets.

In the absence of any devices and materials in the PES, the equipment can be replaced with a similar one with other characteristics. In order to ensure an objective assessment of the performance of laboratory work by the participants of the OGE in the event of replacing equipment with a similar one with other characteristics, it is necessary to bring to the attention of the PC experts who check the performance of tasks, a description of the characteristics of the equipment actually used in the exam.

The head of the PES / member of the SEC draws up an act on the replacement of equipment in a free form, the act is transferred together with the EM to the RCOI.

Items with RO are evaluated by two experts taking into account the correctness and completeness of the answer.

OGE in Literature

When completing the tasks of both parts of the ER, the examinee has the right to use the full texts of works of art, as well as collections of lyrics.

Fiction texts are not provided individually to each examinee. Examinees, as necessary, work with texts at separate tables, on which the necessary books are located. When conducting the exam, it is necessary to prepare books in several copies for each audience (depending on the content). Books should be prepared in such a way that the examinee does not have the opportunity to work with comments and introductory articles to literary texts. The examiner must ensure equal access to literary texts for all participants in the exam.

Instructions for the preparation and conduct of the OGE in the subject "Physics"

Persons who have undergone appropriate training are involved as organizers of the PES and specialists in conducting briefings and providing laboratory work.

PES organizers and specialists in briefing and laboratory work are informed about the location of the PES, to which they are sent, not earlier than three working days before the exam.

Features of the physics exam

3 hours (180 minutes) are allotted to complete the examination paper in physics. The work consists of 3 parts, including 27 tasks.

Part 1 contains 19 tasks (1-19), tasks 1-18 have four answers, task 19 requires a detailed answer.

Part 2 contains 4 short answer tasks (20–23).

Part 3 contains 4 tasks (24-27), which should be given a detailed answer. Task 24 is experimental, and for its implementation it is necessary to use laboratory equipment.

The exam is held in physics classrooms. If necessary, you can use other rooms that meet the requirements of safe work when performing experimental tasks of the examination work. The briefing and laboratory work specialist conducts a safety briefing before the exam and monitors compliance with the rules of safe work during the work of exam participants with laboratory equipment.

During the exam, participants are allowed to use non-programmable calculators (non-programmable calculators are brought by themselves).

During the experimental task phase, participants use laboratory equipment.

Laboratory equipment is placed in the audience on a specially allocated table. (If it is not possible to provide each classroom for conducting the OGE in physics with a full set of sets of laboratory equipment, the specialist instructing and providing laboratory work, after issuing an EC to the exam participants, prepares the necessary sets according to the options of the OGE participants).

The issuance of laboratory equipment is carried out only by a specialist in instructing and providing laboratory work.

After the issuance of laboratory equipment, the exam participant can begin to perform the experimental task.

The specialist in briefing and laboratory work has the right to intervene in the work of an exam participant when performing an experimental task only if the participant violates safety regulations, detects equipment malfunctions or other emergency situations.

Exam Preparation

The day before the exam a specialist in briefing and laboratory work, together with the head of the PES, must:

check the readiness of the audience for the exam: compliance with safe working conditions, availability of equipment kits.

check the operability of equipment sets for electricity and optics;

prepare the characteristics of laboratory equipment indicating the changes made (if necessary);

fill in the sheets "Calibration of laboratory equipment for the OGE in physics", entering the appropriate number in the table of characteristics of the sets. Each set of equipment must be placed in its own tray. Cylinders from sets No. 1 and No. 2 and resistors from set No. 5 must have designations corresponding to the list of equipment. Each equipment tray is marked with a number consisting of the kit number and a letter (A through C for all kits except Kit #5, and A through F for Kit #5).

On the day of the exam organizers and specialists for briefing and laboratory work should:

appear at the PES no later than one hour and thirty minutes before the start of the exam and register with the head of the PES;

get information from the head of the PES about the appointment of responsible organizers in the audience and distribution among the PES audiences;

receive assignments by audience from the head of the PES to specialists in conducting briefings and providing laboratory work;

be instructed by the head of the PES on the procedure for conducting the exam.

The responsible organizer should receive from the head of the PES:

brief instructions for exam participants,

safety instructions,

lists of participants in the exam for the audience,

auditorium number plates

a memo with an encoding (region, educational institution, PES, audience) used when filling out the registration parts of the OGE forms,

scissors for opening the delivery package with EM,

return package for EM,

return package for CIM;

not later than 45 minutes before the start of the exam, go to your audience, check its readiness for the exam and begin to perform your duties:

distribute drafts (minimum number - two sheets) to the workplaces of the exam participants for each participant;

prepare on the board the necessary information to fill in the registration fields in the answer forms in accordance with the coded memo received from the head of the PES;

attach one copy of the list of exam participants to the classroom door,

A specialist in conducting briefings and providing laboratory work needs to receive a statement to familiarize the OGE participants with safety briefings.

KIM OGE in physics contain an experimental task that is performed by participants using real laboratory equipment. 5 experimental tasks are used. To conduct it, it is necessary to prepare in the audience for 15 examinees six sets No. 5 and three sets of the remaining numbers of sets.

Sets of laboratory equipment for performing experimental tasks are formed in advance, one or two days before the exam.

Each set of equipment must be placed in its own tray. Cylinders from sets No. 1 and No. 2 and resistors from set No. 5 must have designations corresponding to the list of equipment. Each equipment tray is marked with a number consisting of the kit number and a letter (A through D for all kits except Kit #5, and A through H for Kit #5).

The entrance of the exam participants to the audience.

The responsible organizer at the entrance of the exam participants to the audience must:

check the details of the identity document of the exam participant;

inform the participant of the exam the number of his place in the audience;

indicate a place where the exam participant can leave their personal belongings. If the exam participant brought their own non-programmable calculator, the organizer checks it for the absence of additional functions, etc.;

help the exam participant to quickly take the place allotted to him, while making sure that the exam participants do not talk or change places.

Not later than 15 minutes before the start of the exam, the responsible organizer receives the exam participants from the head of the PES EM.

Conducting an exam

The organizer must:

remind the participants of the exam about the prohibition to carry and use during the exam mobile phones, other means of communication, electronic computers;

check that the gel pen of the exam participant writes with a continuous black line (replace the pen if necessary).

Distribution of examination materials.

The responsible organizer in the audience must:

demonstrate to the exam participants the integrity of the packaging of the delivery special package with IC;

open the delivery special package with IC;

distribute to all participants of the exam IC in random order;

at the direction of the responsible organizer, the participants of the exam fill in the registration fields of answer forms No. 1 and No. 2, additional answer form No. 2.

The briefing and laboratory support specialist should conduct a brief safety briefing.

After the safety briefing, the participants of the exam must sign the sheet for familiarization with the rules for working with laboratory equipment.

After issuing the KIM to the participants, the specialist in briefing and providing laboratory work must find out the number of the set of laboratory equipment from each participant in the OGE and, as the participants in the exam on the practical task are ready, must give him an individual set of equipment on the table in accordance with the task of its option.

After filling in the registration fields of the answer forms No. 1 and No. 2 by all participants of the exam, announce the beginning of the exam, the duration and end time of the exam and fix the start time of the exam on the board.

Then the participants of the exam complete the tasks.

During the examination, the organizer in the classroom must:

check the correctness of filling in the registration fields on all forms for each participant and the compliance of the data of the exam participant (full name, series and numbers of the identity document) in the answer form No. 1 and the identity document.

Keep order in the audience and avoid:

conversations between test participants

exchange of any materials and objects between the participants of the exam,

use of mobile phones, other means of communication and electronic computing equipment; reference materials, other than those permitted,

walking on the PES during the exam without the accompaniment of the organizer outside the classroom.

In the event that the exam participant made a claim regarding the content of the task of his KIM, it is necessary to record the essence of the claim in a memo and transfer it to the head of the PES (the memo must contain information about the unique number of the KIM, the task and the content of the remark).

Issuance of laboratory equipment

At the beginning of the exam, the briefing and laboratory support specialist must obtain the numbers of the laboratory equipment kits of the participants in the exam and issue the appropriate laboratory equipment kit.

An additional answer sheet No. 2 will be issued in the EC of the exam participant, in which, after the completion of the exam, the specialist instructing and providing laboratory work enters the characteristics of the corresponding set.

The participant of the exam writes down the decision on the tasks of the practical part on the answer form No. 2, if necessary, the participant can request the following additional answer form No. 2. Additional answer form No. 2A with the characteristics of laboratory equipment is submitted together with the answer forms of the exam participant.

During the exam, the specialist instructing and providing laboratory work monitors compliance with the rules of labor safety by the participants in the exam. In the event that an exam participant violates the rules of safe labor when performing an experimental task, the organizer has the right to remove him from the exam. The organizer in the audience records the fact of removal in the act of removal from the exam.

After the exam, the briefing and laboratory support specialist removes the equipment sets from the tables.

Completion of the exam and organizing the collection of examination materials from the participants of the exam.

30 and 5 minutes before the end of the exam, the organizer notifies the participants of the exam about the time before the end of the exam.

At the end of the exam, the organizer must:

announce that the exam is over;

write down the time of the end of the exam on the board;

take from the participants of the exam in an organized manner:

answer forms No. 1, answer forms No. 2, additional answer forms No. 2, KIM version, enclosed back in the envelope, drafts;

put a dash "Z" on the margins of answer forms No. 2, intended for recording answers in free form, but left blank (including on its reverse side);

transfer additional answer form No. 2 to a specialist in briefing and laboratory work to enter the relevant characteristics of laboratory equipment;

use any other packages instead of the issued return packages,

attach any other materials with the forms,

fasten forms (with paper clips, stapler, etc.),

change the orientation of the forms in the package (top-bottom, front-back side);

add up the materials collected from the participants of the exam:

in one return package - answer forms No. 1;

in the second return package - answer forms No. 2, including additional answer forms No. 2. Additional answer form No. 2 must be placed behind the main answer form No. 2;

envelopes with KIM;

drafts.

Hand over to the head of the PPE:

return packages with answer forms of OGE participants (package with answer forms No. 1; package with answer forms No. 2 and additional answer forms No. 2);

return package with CIM,

drafts,

unused IR,

office notes;

statements and forms of the exam in the classroom

remove laboratory equipment.

The organizers and specialists in conducting briefings and providing laboratory work leave the PES after the transfer of all materials, the execution of the relevant protocol, and only with the permission of the head of the PES.

The order of the briefing by the organizers in the audience

On the board (information stand) in the audience, a sample of the registration fields of the OGE participant's answer forms is drawn up. The organizer fills in the audience on the board - the date of the OGE, region 77, PES code, audience number. The remaining fields - the code of the educational organization, class (number letter), full name, passport data - are filled in by the participants of the exam using their data from the identity document.

Instruction for the participants of the OGE, read by the organizer in the audience:

Dear Exam Participants! Today you are taking an exam in physics in the form of the OGE.

During the examination, you must follow the order of the examination.

During the exam, it is prohibited:

to have with them means of communication, electronic computers, photo, audio and video equipment, reference materials, written notes and other means of storing and transmitting information;

talk, get up, change seats, exchange any materials and objects;

transfer, disclose and photograph CIM or parts thereof;

carry and use correction fluid, pencils;

use reference materials other than those indicated in the text of the KIM;

move around the PES during the exam without being accompanied by the organizer.

In case of violation of these requirements of the established procedure for conducting the OGE, you will be removed from the exam.

You can get acquainted with the results of the exam in an educational organization.

Planned date of acquaintance with the results: _____________ ( name the date).

After receiving the results of the OGE, you can file an appeal about disagreement with the scores. The appeal is filed within two working days from the date of the announcement of the results of the OGE.

During the exam, on your desktop, in addition to exam materials, you can only have:

gel, capillary or fountain pen with black ink;

identity document.

You may use a non-programmable calculator during the exam.

The organizer draws the attention of the OGE participants to the delivery package with examination materials.

Exam materials were delivered to the audience in a delivery package. The packaging of the package is not broken

(demonstrate and open using scissors).

It contains individual sets with examination materials.

(the organizer distributes the IC to the participants).

Check the integrity of your individual kit. Carefully open the bag, tearing off the flap (from right to left) along the perforation line

(the organizer shows the place of perforation on the envelope).

Before starting work with the forms, we will check the completeness of your individual set. In an individual package:

answer sheet No. 1,

answer form No. 2,

control measuring material (CMM).

Carefully review the text of the KIM, check the quality of the text for printing defects, the number of pages of the KIM.

If you find extra or lack of forms, typographical defects, replace a completely individual set.

Check if the number on the CMM sheet matches the CMM number printed on form #1.

Pause for participants to check the integrity of the IC

Let's start filling out form No. 1

Write letters and numbers according to the pattern on the form.Each digit, symbol is written in a separate cell.

Fill in the registration fields in accordance with the information on the board (information stand).Draw the attention of the participants to the board.

We fill in the region, the date of the OGE, the code of the educational organization, class, PES code, audience number.

We fill in the fields: last name, first name, patronymic, data of an identity document, gender.

Pause for participants to fill in the fields

Put your signature in the "participant's signature" field located at the top of form #1.

Fill in the fields of the answer form No. 2 - region, code and name of the subject.

When completing tasks, carefully read the instructions for the tasks indicated by your KIM. Write down your answers according to these instructions.

When performing the “Multiple Choice Tasks”, you must select one correct answer and put a cross in the box with the number of the selected answer in the form.

When performing the "Task with a short answer" to the right of the task number, you write down the answer. Each character must be written in a separate box. Only capital letters are allowed. Samples of their writing are given on the form under the registration fields.

If it was not possible to avoid accidental marks, they should be replaced in the "Replacing erroneous answers with multiple choice tasks" area with those answers that you consider correct.

At the bottom of the answer sheet No. 1, fields are provided for recording new answers to the “Assignments with a short answer” instead of those erroneously recorded.

To change the answer to the "Task with a short answer" in the answer form No. 1, it is necessary to put down the number of the corrected "Task with a short answer" in the corresponding replacement fields and write down the new value of the correct answer to the specified task.

In the answer form No. 2, the following are filled in: region code, subject code, subject name.

On the answer sheet No. 2, tasks are performed - 19, 24-27. If you do not have enough space on the form, you can ask the organizer for an additional answer form No. 2.

You will now be read the safety instructions. After the start of the exam, a specialist instructing and providing laboratory work will come to you and find out the number of laboratory equipment necessary to complete the experimental task. As soon as you are ready, you will be given the necessary set of laboratory equipment.

INSTRUCTIONS

according to labor safety rules for participants of the OGE

when taking a physics exam

1. Be attentive and disciplined, strictly follow the instructions of the exam organizer.

2. Do not start work without the permission of the exam organizer.

3. Place devices, materials, equipment at your workplace in such a way as to prevent them from falling or tipping over.

4. Before performing the work, carefully study its content and the order of execution.

5. To prevent falling, glass vessels (test tubes, flasks) should be carefully fixed in the leg of the tripod during experiments. Take special care when working with glassware.

6. When conducting experiments, do not allow the limiting loads of measuring instruments.

7. When assembling experimental setups, use wires (with lugs and protective covers) with strong insulation without visible damage. It is forbidden to use a conductor with worn insulation.

9. When assembling the electrical circuit, avoid crossing wires.

10. Connect the power source to the electrical circuit last. Turn on the assembled circuit only after checking and with the permission of the exam organizer.

11. Do not reconnect any circuits until the power supply has been disconnected.

12. Use tools with insulated handles.

13. At the end of work, turn off the power supply, and then disassemble the electrical circuit.

14. Do not leave the workplace without the permission of the exam organizer.

15. If you find a malfunction in electrical devices under voltage, immediately turn off the power supply and inform the exam organizer about this.

Instruction completed. You must now sign the statement of familiarization with the safety rules.

(The briefing and laboratory work specialist walks through the audience with a list where participants put their signatures)

You can start completing tasks.

Exam start:(announce the start time of the exam)

End of the exam:(specify time)

Write the start and end times of the exam on the board.

The time allotted for briefing and filling out the registration parts of the OGE forms is not included in the total exam time.

30 minutes before the end of the exam, you must announce

There are 30 minutes left before the end of the exam.

Do not forget to transfer the answers from the text of the work and the draft to the answer forms.

5 minutes before the end of the exam, you must announce

There are 5 minutes left before the end of the exam, early delivery of exam materials is terminated.

At the end of the exam, announce

The exam is over. Place your forms on the edge of the table. Put the CIM in the envelope of the individual kit.

The organizers collect examination materials in an organized manner

Exam participants may only bring their passport, black gel pen and non-programmable calculator with them to the classroom.

When distributing, the IC is placed on the edge of the table.

In case of detection of erroneous filling of registration fields organizers instruct the test taker to make the appropriate corrections.

Description of the presentation on individual slides:

1 slide

Description of the slide:

2 slide

Description of the slide:

Experimental task 24 checks: 1) the ability to make indirect measurements of physical quantities: the density of matter, the Archimedes force, the coefficient of sliding friction, the stiffness of the spring, the period and frequency of oscillation of a mathematical pendulum, the moment of force acting on the lever, the work of the elastic force when lifting a load using a movable and a fixed block, the work of the friction force, the optical power of the collecting lens, the electrical resistance of the resistor, the work and current power.

3 slide

Description of the slide:

Experimental task 23 checks: 2) the ability to present experimental results in the form of: tables, graphs or schematic drawings and draw conclusions based on the experimental data obtained: on the dependence of the elastic force arising in the spring on the degree of deformation of the spring, on the dependence of the oscillation period of a mathematical pendulum on the length of the thread, the dependence of the current strength arising in the conductor on the voltage at the ends of the conductor, the dependence of the sliding friction force on the force of normal pressure, the properties of the image obtained using a converging lens.

4 slide

Description of the slide:

Experimental task 23 checks: 3) the ability to conduct an experimental verification of physical laws and consequences: checking the rule for electric voltage when resistors are connected in series, checking the rule for electric current when resistors are connected in parallel.

5 slide

Description of the slide:

EXAMPLES OF LABORATORY TASKS L.R. No. 1. Measurement of the density of a substance. Using a beaker, water, measuring cylinder, balance, determine the density of cylinder No. (1 or 2). Make the necessary measurements and calculations and determine the density of the substance. In the answer sheet: 1) describe the order of the experiment; 2) write down the formula for calculating the density of a solid body; 3) write down the measurement results. 4) calculate the density of the solid body. An example of a possible implementation. one.

6 slide

Description of the slide:

EXAMPLES OF LABORATORY TASKS L.r. No. 2. Buoyancy force measurement. Using a school dynamometer with a measurement limit of 4N (C \u003d 0.1N), a glass of water, cylinder No. (1 or 2), assemble an installation to determine the buoyancy force (Archimedes force) acting on the cylinder. In the answer sheet: 1) make a drawing of the experimental setup; 2) write down the formula for calculating the buoyancy force; 3) indicate the results of measurements of the weight of the cylinder in air and the weight of the cylinder in water; 4) write down the numerical value of the buoyancy force. An example of a possible implementation. 1. 2. Fa = P1 - P2; 3. P1 = .... H; P2 = .... H; 4. Fa = ... H.

7 slide

Description of the slide:

EXAMPLES OF LABORATORY TASKS L.r. No. 3. Spring stiffness measurement. Using a tripod with a clutch and foot, (spring) two dynamometers, a ruler and three weights, assemble an experimental setup to determine the spring stiffness. Determine the stiffness of the spring by hanging one, two, three weights from it. Use a dynamometer to determine the weight of the loads. In the answer sheet: 1) make a drawing of the experimental setup; 2) write down the formula for calculating the stiffness of the spring; 3) indicate the results of measuring the weight of the weights and the elongation of the spring; 4) write down the numerical value of the spring stiffness. An example of a possible implementation. 1. 4) k = … N/m 3) 2) F = kx, k = F x №p/p Fcontrol, N x, m 1 2 3

8 slide

Description of the slide:

EXAMPLES OF LABORATORY TASKS An example of a possible implementation. L.r. No. 4. Investigation of the dependence of the elastic force arising in the spring on the degree of deformation of the spring. Using a tripod with a clutch and foot, (spring) two dynamometers, a ruler and three weights, assemble an experimental setup to study the dependence of the elastic force that occurs in the spring on the degree of deformation of the spring. Determine the stiffness of the spring by hanging one, two, three weights from it. Use a dynamometer to determine the weight of the loads. In the answer sheet: 1) describe the order of the experiment, make a drawing of the experimental setup; 2) indicate the results of direct measurements of the elastic force and displacement in the form of a table; 3) build a graph of the dependence of the elastic force on the deformation of the spring; 4) formulate a qualitative conclusion about the dependence of the elastic force arising in the spring on the degree of deformation of the spring.

9 slide

Description of the slide:

EXAMPLES OF LABORATORY TASKS EXAMPLES OF LABORATORY TASKS An example of a possible implementation. In the answer sheet: 1) describe the order of the experiment, make a drawing of the experimental setup; 2) indicate the results of direct measurements of the elastic force and displacement in the form of a table; 3) build a graph of the dependence of the elastic force on the deformation of the spring; 4) formulate a qualitative conclusion about the dependence of the elastic force arising in the spring on the degree of deformation of the spring. 1) 2) 3) 0 4) Conclusion: experience has shown that the change in body length during tension is directly proportional to the modulus of the elastic force. No. p/p Fcontrol, N x, m 1 2 3

10 slide

Description of the slide:

EXAMPLES OF LABORATORY TASKS L.r. No. 5. Measurement of the coefficient of sliding friction. Using a carriage (bar) with a hook, a dynamometer, two weights, assemble an installation to determine the coefficient of sliding friction between the carriage and the table surface. In the answer sheet: 1) make a drawing of the experimental setup; 2) write down the formula for calculating the coefficient of sliding friction; 3) indicate the results of measuring the weight of the carriage with the load and the sliding friction force when the carriage with the loads moves along the surface of the table; 4) write down the numerical value of the coefficient of sliding friction. An example of a possible implementation. one)

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EXAMPLES OF LABORATORY TASKS L.r. No. 6. Investigation of the dependence of the sliding friction force on the force of normal pressure. Using a wooden block with hooks on a thread, a dynamometer, 2 weights of (100+_20 g), a guide rail, investigate the dependence of the friction force on the normal pressure force. In the answer sheet: 1) describe the procedure for performing the experiment; 2) write down the found value of the coefficient of friction for each measurement; 3) build a graph of the dependence of the friction force on the force of normal pressure; 4) draw a conclusion about the nature of the dependence of the friction force on the force of normal pressure. An example of a possible implementation.

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EXAMPLES OF LABORATORY TASKS In the answer form: 1) describe the order of the experiment; 2) write down the found value of the coefficient of friction for each measurement; 3) build a graph of the dependence of the friction force on the force of normal pressure; 4) draw a conclusion about the nature of the dependence of the friction force on the force of normal pressure. An example of a possible implementation. 2) 4) Conclusion: with an increase in the force of normal pressure, the sliding friction force that occurs between the carriage and the surface of the rail also increases. 1) 3) No. p/p Ftr,N N,N 1 2 3

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EXAMPLES OF LABORATORY TASKS L.r. No. 7. Conductor resistance measurement. Using a 4.5V DC power supply, voltmeter, ammeter, key, rheostat, connecting wires, resistor No. (1 or 2), assemble an experimental setup to determine the electrical resistance of the resistor. In the answer sheet: 1) draw the electrical circuit of the experiment; 2) write down the formula for calculating electrical resistance; 3) indicate the results of voltage measurement at a current strength of 0.5A; 4) write down the numerical value of the electrical resistance. An example of a possible implementation. 3) I = 0.5 A, U = … V 4) R = … Ohm 1) U R

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EXAMPLES OF LABORATORY TASKS L.r. No. 8. Determining the work of electric current Using a 4.5V DC power supply, a voltmeter, an ammeter, a key, a rheostat, connecting wires, resistor No. (1 or 2), assemble an experimental setup to determine the work of an electric current on a resistor at a current of 0.5A for 10 minutes . In the answer sheet: 1) draw the electrical circuit of the experiment; 2) write down the formula for calculating the work of an electric current; 3) indicate the results of voltage measurement at a current strength of 0.5A; 4) write down the numerical value of the work of email. current. An example of a possible implementation. 2) A = IUt 3) I = ... A, U = ... B, t = 10 min. = 600 s 4) A = .... J 1)

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EXAMPLES OF LABORATORY TASKS L.r. No. 9. Determination of the power of electric current in a conductor. Using a 4.5V DC power supply, a voltmeter, an ammeter, a key, a rheostat, connecting wires, resistor No. (1 or 2), assemble an experimental setup to determine the power of the resistor. In the answer sheet: 1) draw the electrical circuit of the experiment; 2) write down the formula for calculating the power of electric current; 3) indicate the results of voltage measurement at a current strength of 0.5A; 4) write down the numerical value of the power el. current. An example of a possible implementation. 2) P = IU 3) I = 0.5 A, U = ... V 4) P = IU

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EXAMPLES OF LABORATORY TASKS L.r. No. 10. Investigation of the dependence of the current strength arising in the conductor on the voltage at the ends of the conductor. Using a 4.5V DC power supply, a voltmeter, an ammeter, a key, a rheostat, connecting wires, resistor No. (1 or 2), assemble an experimental setup to study the dependence of the current that occurs in the conductor on the voltage at the ends of the conductor. In the answer sheet: 1) describe the order of the experiment; 2) write down the found value of current and voltage for each measurement; 3) build a graph of current versus voltage; 4) draw a conclusion about the nature of the dependence of the current strength that occurs in the conductor on the voltage at the ends of the conductor.

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EXAMPLES OF LABORATORY TASKS In the answer form: 1) describe the order of the experiment; 2) write down the found value of current and voltage for each measurement; 3) build a graph of current versus voltage; 4) draw a conclusion about the nature of the dependence of the current strength that occurs in the conductor on the voltage at the ends of the conductor. An example of a possible implementation. 2) I \u003d ... A, U \u003d ... B 3) 4) Conclusion: with an increase in the current strength in the conductor, the voltage that occurs at its ends also increases. Item No. I,A U,B 1 2 3

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EXAMPLES OF LABORATORY TASKS L.r. No. 11. Measurement of the optical power of the lens. Using a converging lens No. (1 or 2), a ruler 20-30 cm long, a screen, a working body, determine the focal length and calculate the optical power of the lens. In the answer sheet: 1) make a drawing of the experimental setup; 2) write down the formula for calculating the optical power of the lens; 3) indicate the results of measuring the focal length of the lens; 4) write down the numerical value of the optical power of the lens. An example of a possible implementation. 1) 3) F = ... cm = ... m 4) D = ... diopters 2) D = 1 F

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EXAMPLES OF LABORATORY TASKS L.r. No. 12. Investigation of the dependence of the period or frequency of oscillations of a mathematical pendulum on the length of the thread. Using a tripod with a clutch and foot, a ball with a thread attached to it, a ruler and a clock with a second hand, assemble an experimental setup to study the dependence of the period or frequency of oscillation of a mathematical pendulum on the length of the thread. Determine the time for 30 complete oscillations and calculate the period of oscillation for three cases when the length of the thread is respectively 1m, 0.5m and 0.25m. In the answer sheet: 1) make a drawing of the experimental setup; 2) indicate the results of direct measurements of the number of oscillations and the oscillation time for three lengths of the pendulum thread in the form of a table; 3) calculate the oscillation period for each case and enter the results in the table; 4) formulate a qualitative conclusion about the dependence of the period of free oscillations of the thread pendulum on the length of the thread.

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EXAMPLES OF LABORATORY TASKS An example of a possible implementation. In the answer sheet: 1) make a drawing of the experimental setup; 2) indicate the results of direct measurements of the number of oscillations and the oscillation time for three lengths of the pendulum thread in the form of a table; 3) calculate the oscillation period for each case and enter the results in the table; 4) formulate a qualitative conclusion about the dependence of the period of free oscillations of the thread pendulum on the length of the thread. 1) 2,3) 4) Conclusion: when the length of the thread decreases by 4 times, the period of oscillation of the mathematical pendulum decreases by 2 times. Т = t n , s No. p/p Thread length l, m Number of vibrations n Oscillation time t, s Oscillation period 1 1 30 2 0.5 30 3 0.25 30