Skill analyze and build graphs changes thermodynamic state ideal gas is an indicator of good assimilation of the material of the topic " Gas laws". If the student formally If he memorized the equation of state of an ideal gas and the mathematical expressions of the laws of Boyle-Mariotte, Gay-Lussac and Charles, then for him the construction and analysis of graphs of isoprocesses will be a difficult mathematical task. But if the student really understands the material, if he has a good idea of ​​the processes of changing the state of the gas (for example, without analyzing the equation “sensually knows” that when the gas in a closed vessel is heated, its pressure rises, and when it cools down), then he will read and build graphs easily.

The set contains 32 options for tasks.

At the first physics lesson in the 8th grade, which in the 7th grade was not mine, i.e. the children are not familiar to me, I spend a short test on the material of the 7th grade. I do this in order to reveal their level of knowledge (estimated, taking into account what was forgotten over the summer), to see “who is who” in the class.

12 options. Each option has 4 tasks.

I announce to the students that only fives will be put in the magazine, deuces will not be put in the magazine, and the rest of the grades are optional.

Option 1

1. A cyclist traveled a distance of 12 km in 40 minutes. Find its speed.
2. The newspaper sheet is 80 cm wide and 0.9 m long. Find its area.
3. What is a barometer used for?
4. What is the formula for the density of a substance? In what units is the density of a substance measured?

According to the drawing, it is required to write the equations of motion for each of the three bodies, calculate the place and time of the meeting of the two bodies, find the distance between the two bodies at a certain point in time, and plot x(t) for one of the bodies.

The fulfillment of these tasks by students precedes the fulfillment of previously placed individual tasks on the topic “Graph of uniform rectilinear motion”.

Tasks are given in 12 options. They test (and practice) many skills and abilities, starting with the correct determination of the scale along the axis and ending with the assessment of the correctness of the result (for example, the coordinate of the first body in the above figure cannot be positive), i.e. ability to represent a physical situation.

Students should note that the bodies in the figure are numbered from left to right: 1st, 2nd, 3rd.

Cards of individual tasks allow students to most actively carry out independent work in the lesson. Using them is also convenient because they make it easy to compile and replenish an extensive catalog of tasks on any topic, classifying tasks according to the level of complexity. In ordinary collections of problems there is not a sufficient set of training problems of the same type, and cards allow you to create such sets. In addition, the use of a large number of task options on cards allows you to deal with cheating.

The presented set of cards on the topic "Schedule of uniform rectilinear motion" contains 20 options for tasks. In accordance with the role of the task in learning, these task cards can be used in independent training work of students and for test work.

Chart reading is an important skill that gets little attention. In the problem book, “one or two” tasks are solved per schedule, and these cards allow you to practice this skill many times.

Title: Didactic task cards in physics. 7th grade.

The manual contains task cards for the Organization independent work seventh graders in physics. Their content covers all the basic physical issues considered in the 7th grade. The use of these cards helps to individualize the learning process of schoolchildren and makes it easier to check their understanding and assimilation of educational material. The variety of tasks and questions included in the cards allows, taking into account the characteristics and interests of students, to offer them personally oriented tasks.

Task cards in physics for 7th grade students were compiled for the textbook “Physics. Grade 7 "A.V. Feathers on recent years editions. They cover all the main questions of the course of physics studied by seventh-graders, in the order in which they are presented in the textbook.
Each task card contains two items: the first, as a rule, is intended to find out whether the obligatory theoretical material has been mastered: concepts, phenomena, properties, laws, rules, formulas; the second is a task formulated in one form or another, which helps to understand and assimilate the educational material, applying knowledge in practice.

CONTENT
Preface 4
Introduction 5
Physical body and matter. Observations and experiments 5
Physical quantities. Their dimension 7
I. Initial information about the structure of matter 9
The structure of matter. Molecules 9
The movement of molecules. Diffusion 13
Mutual attraction and repulsion of molecules 13
Three states of matter. Molecular structure solids, liquids and gases 15
II. Interaction of bodies 19
Mechanical movement 19
Speed. Speed ​​units 21
Distance and time calculation 23
Inertia. Interaction of bodies 27
Body weight 31
Calculation of the mass and volume of a body by the density of its substance
Elastic force. Hooke's law
Units of power. Dynamometer
Addition of two forces in the same straight line
III. Pressure of solids, liquids and gases 57
Pressure. Pressure units 57
Gas pressure 59
Transmission of pressure by liquids and gases. Pascal's Law 63
Pressure in liquid and gas 65
Fluid Pressure Calculation 67
Communicating vessels 69
Air weight. Atmosphere pressure 71
Measurement of atmospheric pressure. Experience Torricelli 73
Barometers. Atmospheric pressure at different heights 77
Pressure gauges 79
Piston pump. Hydraulic press 81
The action of liquid and gas on a body immersed in them 83
Archimedean strength 85
Swimming bodies 87
Sailing ships. Aeronautics 91
IV. work and power. Energy 93
Mechanical work. Units of work 93
Power. Power units 95
simple mechanisms. Lever 99
Moment of power. Application of levers 101
Equality of work when using simple mechanisms. « Golden Rule» mechanics 105
Coefficient useful action mechanism 105
Energy. Potential energy 107
Kinetic energy. Transformation of one kind mechanical energy in. other 109

Cards are presented in sections: What physics studies. Measurement of physical quantities, physical body, structure of matter, inertia. Phone interaction. Body mass. Speed. Calculation of the path and time of movement. Calculation of the mass and volume of a body by its density. Pressure of solids, liquids and gases. Forces. Graphic image forces. Addition of forces. Archimedean strength. Swimming tel. Work, power, efficiency, energy. The resource is useful for any practicing teacher to organize the testing or development of knowledge.

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Option 1

a B C) and the volume of water in the beakers.

Option 2

a B C)

Option 3

Chalk, lightning, dawn, water drop, Moon, shot, compass, mercury, honey, flood, milk, fountain pen, plastic, melting ice, blizzard, water.

Option 4

2. Write which of the following words denote the physical body.

Option 5

Option 1

1. Determine the division value of each of the beakers (see fig. a B C) and the volume of water in the beakers.

2. Write which of the following words denote the physical body.

Chalk, lightning, dawn, water drop, Moon, shot, compass, mercury, honey, flood, milk, fountain pen, plastic, melting ice, blizzard, water.

Option 2

1. Determine the division value of each of the thermometers (see fig. a B C) and the temperature shown by thermometers.

2. Write which of the following words denote a substance.

Water, ice melt, milk, dawn, drop of water, fountain pen, compasses, mercury, honey, flood, shot, Moon, plastic, lightning, blizzard, chalk

Option 3

1. The figure shows two voltmeters. What is the price of division of devices? What is the voltmeter reading?

2. Write which of the following words denote a phenomenon.

Chalk, lightning, dawn, water drop, Moon, shot, compass, mercury, honey, flood, milk, fountain pen, plastic, melting ice, blizzard, water.

Option 4

1. The figure shows two ammeters. What is the price of division of devices? What is the ammeter reading?

2. Write which of the following words denote the physical body.

Textbook, volume, detail, water, mass, cylinder, thermometer, piece of ice, mercury, beaker, tape measure, height, ice, water vapor, lead

Option 5

1. Determine the division value of the measuring tape (see thumbnail) and the size of the arrows.

2. Write which of the following words denote physical devices.

Lead, height, volume, water, mass, beaker, cylinder, thermometer, piece of ice, mercury, tape measure, detail, ice, water vapor, textbook

Option 1

1. Determine the division value of each of the beakers (see fig. a B C) and the volume of water in the beakers.

2. Write which of the following words denote the physical body.

Chalk, lightning, dawn, water drop, Moon, shot, compass, mercury, honey, flood, milk, fountain pen, plastic, melting ice, blizzard, water.

Option 2

1. Determine the division value of each of the thermometers (see fig. a B C) and the temperature shown by thermometers.

2. Write which of the following words denote a substance.

Water, ice melt, milk, dawn, drop of water, fountain pen, compasses, mercury, honey, flood, shot, Moon, plastic, lightning, blizzard, chalk

Individual work.

I. Complete the following tasks.

1. Complete the offer:

A. The totality of the reference body, the coordinate system associated with it and the clock ...
B. A motion in which any line moves parallel to itself...
AT. Change in the spatial position of the body relative to other bodies with ...
G. Movement with a constant modulo and direction speed ...
D. Rectilinear motion, in which the acceleration of speed and is constantly ...
E. A vector connecting the origin with the position of a material point at an arbitrary point in time ...

2. Choose the correct answer:

1. Two tasks are proposed:

1) Calculate the period of revolution around the Earth artificial satellite- a ball with a radius of 20 m.
2) Calculate the Archimedes force acting in water on a wooden ball with a radius of 10 cm. In which problem can the ball be considered as material point?

A. Only in problem 1.
B. only in task 2.
B. In tasks 1 and 2.
D. None of the two tasks.

2. Among the physical quantities listed below, which one is a scalar quantity?

A. Strength.
B. Speed.
B. Relocation.
D. Acceleration.
D. Way.

3. The Moon revolves around the Earth in a circular orbit with a radius of 400,000 km with a period of approximately 27.3 days. What will be the movement of the Moon in 54.6 days?

A. 0 km.
B. 400,000 km.
B. 800,000 km.
G. 1,260,000 km.
D. 5,000,000 km.

4. Two vectors a and b are given (Fig. 1). Which of the vectors in (Fig. 2) is the sum of these vectors ?

A. Only with.
B. Only d.
B. Only e.
G. e and f
E. c and d.

5. The body moves uniformly in a circle in a clockwise direction. Which arrow (Fig. 3) indicates the direction of the velocity vector during such a movement?

A. 1.
B. 2.
AT 3.
D. 4.
D. 5.

6. The body moves uniformly in a circle in a clockwise direction. Which arrow (Fig. 3) indicates the direction of the acceleration vector during such a movement?

A. 1.
B. 2.
AT 3.
D. 4.
D. 5.

7. According to the graph of the dependence of the speed of the body on time (Fig. 4), determine the acceleration at time 3 s .

A. 80m/s 2 .
B. 20 m / s 2.
V. 15 m/s 2 .
D. 5 m/s 2
D. 0.

8. The cyclist starts moving from a state of rest and moves in a straight line with uniform acceleration. After 10 s after the start of movement, its speed becomes equal to 5 m/s. How fast was the cyclist moving?

A. 50 m / s 2.
B. 10m/s 2 .
V. 5 m/s 2 .
G. 2 m / s 2.
D. 0.5 m / s 2.

9. The body moves uniformly in a circle. How will its centripetal acceleration change with an increase in speed by 2 times and a decrease in the radius of the circle by 4 times?

A. Will increase by 2 times.
B. Decrease by 2 times.
B. Will increase 16 times.
D. Decrease by 8 times.

10. According to the speed graph (Fig. 5), determine the acceleration module of the body in the time interval 0 - 5 s and the path traveled by the body during this time.

A. 10 m/s 2 , 125 m.
B. 10m/s 2 , 175 m.
V. 10 m / s 2, 75 m.
D.8m/s 2 , 100m.
D.8m/s 2 , 150m.

11. The period of revolution of a body moving uniformly in a circle has increased by 2 times. Frequency of circulation

A. increased by 2 times. B. decreased by 2 times. B. Increased 4 times. G. decreased by 4 times.

II. Check the correctness of the tasks with the teacher.
III. Move on to the next UE if you didn't make any mistakes..
IV . Go back to previously learned material if you make mistakes.

Chapters 1 and 2 of the textbook, lectures 1,2,3.

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