M.: 2017 - 2 72s. M.: 2013 - 2 72s. M.: 2010 - 1 92s.
This manual fully complies with the federal state educational standard (second generation). Collection of problems in physics A.V. Peryshkin is a necessary component of the teaching and methodological package in physics for grades 7-9. The manual is focused on the textbooks of A.V. Peryshkin "Physics. Grade 7", "Physics. Grade 8" and the textbook by A.V. Peryshkin and E.M. Gutnik "Physics. Grade 9". It covers all sections studied in grades 7-9, therefore it will also provide invaluable assistance to those who study using any physics textbooks included in the Federal List. The manual is based on the works of A.V. Peryshkin, published in different time, and is a unique collection of over 1800 problems in physics. The collection contains tasks for each paragraph of the indicated textbooks by A.V. Peryshkin, as well as answers and reference material. The publication is addressed to physics teachers, students of grades 7-9, as well as those who are preparing for the State final certification in physics.
Format: pdf(2017 , 19th ed., revised. and additional, 272c)
Size: 5 MB
Watch, download: drive.google ; Rghost
Format: pdf (2013 , 9th ed., revised. and additional, 272c)
Size: 3 MB
Watch, download: drive.google ; Rghost
Format: pdf (2010 , 5th ed., ster., 192s)
Size: 4.6 MB
Watch, download: drive.google ; Rghost
CONTENT
7TH GRADE
INTRODUCTION
1. Some physical terms. Observations and experiments 8
2. Physical quantities. Measurement physical quantities..10
3. Accuracy and error of measurements 13
INITIAL INFORMATION ABOUT THE STRUCTURE OF SUBSTANCE
4. The structure of matter. Molecules. Diffusion in gases, liquids and solids Oh. Mutual attraction and repulsion of molecules 14
5. Aggregate states of matter. The difference in the molecular structure of solids, liquids and gases 17
INTERACTION OF BODIES
6. mechanical movement. Uniform and uneven movement 18
7. Speed. Speed units. Distance and time calculation 19
8. Inertia 26
9. Interaction of bodies. Body mass. Mass units. Measuring body weight on scales 27
10. Density of matter. Calculation of mass and volume of a body by its density 29
11. Strength. The phenomenon of attraction. Gravity 34
12. Strength of elasticity. Hooke's law. Body weight. Power units 35
13. Relationship between gravity and body mass 38
14. Dynamometer. The addition of two forces in the same straight line. Resultant force 39
15. Force of friction. Friction of rest. Friction in nature and technology 44
PRESSURE OF SOLIDS, LIQUIDS AND GASES
16. Pressure. Units of pressure. Ways to reduce and increase pressure 47
17. Gas pressure. Transmission of pressure by liquids and gases. Pascal's Law 48
18. Pressure in liquid and gas. Calculation of liquid pressure on the bottom and walls of the vessel 49
19. Communicating vessels 53
20. Air weight. Atmosphere pressure. The Torricelli experience. Hydraulic mechanisms 54
21. The action of liquid and gas on a body immersed in them. Archimedean strength. Swimming tel. Aeronautics 58
WORK AND POWER. ENERGY
22. mechanical work. Units of work 63
23. Power. Power units 64
24. Lever. The balance of forces on the lever. Moment of power. Levers in technology, everyday life and nature 67
25. Application of the law of balance of the lever to the block. " Golden Rule» mechanics 69
26. Efficiency of the mechanism 71
27. Energy. Potential and kinetic energy 72
28. Transformation of one type of mechanical energy into another 76
8TH GRADE
THERMAL PHENOMENA
29. Thermal motion. Temperature. Internal energy.... 78
30. Ways to change the internal energy of the body. Thermal conductivity. Convection. Radiation 79
31. The amount of heat. Heat units. Specific heat capacity. Calculation of the amount of heat required to heat the body or released by it during cooling 82
32. Fuel energy. Specific calorific value 86
33. The law of conservation and transformation of energy in mechanical and thermal processes 87
CHANGES IN AGGREGATE STATES OF SUBSTANCE
34. Aggregate states of matter. Melting and solidification crystalline bodies. Graph of melting and solidification of crystalline bodies. Specific heat of fusion 90
35. Evaporation. The absorption of energy during the evaporation of a liquid and its release during the condensation of vapor. Boiling. Specific heat of vaporization and condensation 94
36. Humidity 97
37. Work of gas and steam during expansion. Internal combustion engine. Steam turbine. Heat engine efficiency 99
ELECTRICAL PHENOMENA
38. Electrification of bodies upon contact. Interaction of charged bodies. Two kinds of charges. Electroscope. Conductors and non-conductors of electricity. Electric field. Divisibility electric charge. Electron. The structure of atoms. Explanation of electrical phenomena 102
39. Electric current. Sources electric current. Electrical circuit and its components. Electric current in metals. Actions of electric current. Direction of electric current 106
40. Current strength. Units of current. Ammeter. Current measurement 108
41. Electrical voltage. Voltage units. Voltmeter. Voltage measurement. The dependence of the current on the voltage. Ohm's law for circuit section 109
42. Electrical resistance conductors. units of resistance. Calculation of conductor resistance. Resistivity 111
43. Serial connection of conductors 115
44. Parallel connection of conductors 119
45. Work and power of electric current. Units of work of electric current. Heating conductors with electric current. Joule-Lenz law 126
ELECTROMAGNETIC PHENOMENA
46. Magnetic field. Magnetic lines. Earth's magnetic field. Electromagnets. permanent magnets. The action of a magnetic field on a conductor with current 133
LIGHT PHENOMENA
47. Light sources. Spread of light 139
48. Reflection of light. The law of reflection of light.
Flat mirror 140
49. Refraction of light. Law of refraction of light 143
50. Lenses. The optical power of the lens. Images given by the lens 147
9 CLASS
LAWS OF INTERACTION AND MOVEMENT OF BODIES
51. Material point. Reference system. Move. Determining the coordinates of a moving body 154
52. Moving in a straight line uniform motion 157
53. Rectilinear uniformly accelerated motion. Acceleration, speed, displacement 161
54. Relativity of motion. Inertial reference systems. Newton's first law 167
55. Newton's second law 172
56. Newton's Third Law 179
57. Free fall of bodies. Movement of a body thrown vertically upwards 184
58. Law gravity. Acceleration of free fall on the Earth and others celestial bodies 186
59. Rectilinear and curvilinear motion. The movement of a body in a circle with a constant modulo speed. artificial satellites Lands 188
60. Body impulse. Law of conservation of momentum 194
MECHANICAL OSCILLATIONS AND WAVES. SOUND
61. Fluctuations and Waves 200
ELECTROMAGNETIC FIELD
62. The direction of the current and the direction of the lines of its magnetic field. Left hand rule. Magnetic field induction 208
63. The phenomenon of electromagnetic induction. Lenz's rule. The phenomenon of self-induction. Transformer 211
64. Electromagnetic field. Electromagnetic waves. Capacitor. Oscillatory circuit 216
STRUCTURE OF THE ATOM AND THE NUCLEAR. USING THE ENERGY OF ATOMIC NUCLEI
65. Radioactive transformations of atomic nuclei. Structure and composition atomic nucleus. Communication energy. Mass defect 219
Answers 223
Tables of physical quantities 237
Literature 269
Speaking globally, physics can be attributed to the category of sciences about the world around us, about nature. It studies both the material and energy aspects of the universe, explains and logically substantiates various phenomena occurring in nature. Given science underlies the technological progress of society. And in order to fully and qualitatively convey the basics of physics to schoolchildren in grades 7-9, well-known specialists Lukashik V.I. and Ivanova E.V. created a solution for a physics textbook.
The main functions of the GDZ:
1. the formation of the analytical ability of the child, through constant introspection performed homework and analysis of identified errors;
2. help students in the right decision experimental tasks and tasks with various incomplete answers that help the child express himself creatively;
3. independent analysis by seventh graders of tasks for new topic from paragraph;
4. high-quality preparation of schoolchildren for the upcoming class work and to any control of knowledge;
5. consolidate the learned topic by solving tasks for repetition;
6. excellent reference material for high school students who are preparing for exams and final testing;
7. give parents the opportunity to check the level of preparedness of their child and help him with homework;
8. additional material for teachers, which helps to develop a plan for the future lesson with high quality and in detail.
Collection GDZ in physics for grades 7-9 collection of tasks Lukashik involves the study of material from the course of physics for grades 7, 8 and 9. Therefore, the first section of the manual is referred to as INITIAL INFORMATION ABOUT PHYSICAL BODIES AND THEIR PROPERTIES. In it, seventh-graders will deal with the measurement of physical quantities and learn about the structure of matter. Students solve all tasks according to the laws of molecular motion and body temperature. The second section is devoted to the motion and interaction of bodies. Here, students will learn about uniform and uneven rectilinear motion, get acquainted with the concept of inertia of bodies. Problems of finding the density of matter will be solved. The topic of the phenomenon of gravitation and the force of gravity is also touched upon. The authors introduce eighth graders to Newton's laws. Also, students can easily graphically depict force. The third section, entitled "Pressure of Solids, Gases and Liquids", will provide eighth graders with formulas for solving pressure problems. This section includes a paragraph on the mobility of particles of liquids and gases. All tasks from the textbook on Pascal's law will be solved. Tasks on communicating vessels will not be left without attention. And the Law of Archimedes will cease to be an obstacle for students to good academic performance. Also, the features of pressure gauges and pumps will be consecrated here. The next section on work and power also involves the study of simple mechanisms and energy. The authors will give all the formulas for finding work and power, explain the essence of levers and blocks, and help calculate the efficiency of mechanisms and energy. Also included here is a paragraph on the equilibrium of bodies.
The fifth section talks about mechanical oscillation and wave. The sixth involves the analysis of thermal phenomena. It presents all types of heat transfer, gives formulas for measuring the amount of heat. Ninth-graders will get acquainted with the concepts of melting and solidification. Students will also solve evaporation and boiling problems. Heat engines and air humidity will not be left without attention in the sixth section. The seventh section is entirely devoted to electrical phenomena. Students will have to memorize many different formulas, namely the formula for current, voltage and resistance. Schoolchildren on laboratory work can easily collect electrical circuit and calculate tasks on Ohm's Law. They learn everything about electromagnetic phenomena and the thermal effect of current.
The next section is about light phenomena, where exercises on the propagation of light, its reflection and refraction are analyzed in detail. Ninth graders will learn about a flat mirror and be introduced to different lenses. And at the end of the ninth grade physics course, schoolchildren will have to go through a section on the structure of the atom and the atomic nucleus. It includes paragraphs on radioactive decay, nuclear reactions, and elementary particles. Such material fully complies with the Federal State Educational Standards and is recommended for students. general education schools, to prepare for control work and for the Olympics.
Reshebnik in physics for grades 7-9 Peryshkin is a collection of ready-made homework, completed exercises with explanations and comments. It is compiled on the basis of a problem book developed by Peryshkin A.V., and contains correctly completed exercises on all issues. school course physics.
Reshebnik in physics grades 7-9 of the collection of problems of Peryshkin - practical assistance in studying the subject
The key point in the study of physics is the student's understanding physical phenomena and processes in practice. In this regard, a practical solution book, which contains not only ready-made answers to more than 1870 tasks and exercises, but also detailed comments and instructions for their implementation, is of particular relevance in the study of the subject.
If a student uses the GDZ in physics for grades 7-9 of Peryshkin in the process of preparing homework, then he will quickly learn to understand the tasks in the subject, which will positively affect his current academic performance and help him successfully pass the final certification. The guide allows you to:
- understand the algorithm for solving problems;
- to understand the specifics of the application of formulas and laws;
- develop logical and abstract thinking.
The most convenient way to use the physics solution is through our website. Its interface is designed with maximum user convenience and time saving in mind:
- you can access the resource from your phone, laptop or tablet;
- in order to find the desired textbook, it is enough to indicate its name or the name of the author in the search bar;
- by the number of the exercise, the answer is easy to find in the table above.
It is worth adding that the base of solution books on the site is regularly updated, which allows students to present the most relevant solutions to physics problems. For individual exercises, several solutions from different GDZ collections are given at once.
GDZ in physics grades 7-9 Peryshkin - a collection of tasks 2013-2017.
Tasks and exercises in physics for grades 7-9 were combined by Peryshkin A.V. in a single collection, which was published in 2013 by the publishing house "Exam".
The practical guide includes three sections - by class school curriculum. In each of them, the tasks are divided into chapters - in accordance with the curriculum:
- Grade 7 - the structure of substances, the interaction of bodies, pressure, work, power, energy;
- Grade 8 - thermal phenomena and aggregate states substances, electrical phenomena, electromagnetic phenomena, light phenomena;
- Grade 9 - the laws of interaction and movement of bodies, mechanical vibrations and waves, sound, electromagnetic field, the structure of the atom, the use of nuclear energy.
Reshebnik to the collection of problems in physics, prepared by A.V. Peryshkin, is intended for students of the seventh, eighth and ninth grades of secondary schools in Russia. The manual contains many examples that explain in detail how to solve certain types of problems in physics. Of course, with such a textbook, it has become much easier and faster to study than before, and the result will not be long in coming.
Methodological characteristics of the collection
The given concepts, formulas and the described natural phenomena are in accordance with the list given in the Federal State Educational Standard (Federal Educational Standard). The exercises can be useful to teachers and tutors for compiling author's work programs for the course of this subject. Ready homework online develop independence, motivate a conscious approach to learning and help the student quickly achieve the necessary goals:
- prepare for independent and control work, as well as undergo external testing to find out your objective progress.
- study the curriculum of a comprehensive school while being homeschooled.
- repeat the material covered and more deeply understand patterns and exceptions to empirical rules, learn to independently use the fundamental laws of nature to develop their own theories.
- in short time write off homework.
- to form a culture of strict physical and mathematical thinking.
In grades 7-9, a large amount of material is covered, which concerns almost all the basic divisions of physics. This is mechanics (including statics, dynamics and kinematics), Molecular physics(including ideas about the thermal motion of atoms and molecules, as well as the properties of an ideal gas), electrostatics and electrodynamics, the main optical phenomena, ideas about magnets and magnetism. At the end of the course, students get acquainted with the principles of nuclear physics.
Allowance A.V. Peryshkin with correct answers written in view of all pupils of comprehensive schools. Thus, its target audience is all children of the appropriate age.
