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1 Physics formulas that are recommended to be learned and mastered well for successful completion Unified State Exam. Version: 0.92 β. Compiled by: Vaulin D.N. Literature: 1. Peryshkin A.V. Physics 7th grade. Textbook for general education institutions. 13th edition, stereotypical. Moscow. Bustard Peryshkin A.V. Physics 8th grade. Textbook for general education institutions. 12th edition, stereotypical. Moscow. Bustard Peryshkin A.V., Gutnik E.M. Physics 9th grade. Textbook for general education institutions. 14th edition, stereotypical. Moscow. Bustard Myakishev G.Ya. and others. Physics. Mechanics 10th grade. Profile level. Textbook for general education institutions. 11th edition, stereotypical. Moscow. Bustard Myakishev G.Ya., Sinyakov A.Z. Physics. Molecular physics. Thermodynamics 10th grade. Profile level. Textbook for general education institutions. 13th edition, stereotypical. Moscow. Bustard Myakishev G.Ya., Sinyakov A.Z., Slobodskov B.A. Physics. Electrodynamics classes. Profile level. Textbook for general education institutions. 11th edition, stereotypical. Moscow. Bustard Myakishev G.Ya., Sinyakov A.Z. Physics. Oscillations and waves 11th grade. Profile level. Textbook for general education institutions. 9th edition, stereotypical. Moscow. Bustard Myakishev G.Ya., Sinyakov A.Z. Physics. Optics. The quantum physics Grade 11. Profile level. Textbook for general education institutions. 9th edition, stereotypical. Moscow. Bustard Formulas in bold are worth learning when you have already mastered the formulas not in bold. 7th grade. 1. Average speed: 2. Density: 3. Hooke's law: 4. Gravity:
2 5. Pressure: 6. Pressure of a liquid column: 7. Archimedean force: 8. Mechanical work: 9. Power to do work: 10. Moment of force: 11. Coefficient useful action(efficiency) of the mechanism: 12. Potential energy at constant: 13. Kinetic energy: 8th grade. 14. Amount of heat required for heating: 15. Amount of heat released during combustion: 16. Amount of heat required for melting:
3 17. Relative humidity: 18. Amount of heat required for vaporization: 19. Thermal efficiency engine: 20. Useful work heat engine: 21. Law of conservation of charge: 22. Current: 23. Voltage: 24. Resistance: 25. Total resistance serial connection conductors: 26. Total resistance of parallel connection of conductors: 27. Ohm's law for a section of the circuit:
4 28. Power electric current: 29. Joule-Lenz law: 30. Law of light reflection: 31. Law of light refraction: 32. Lens optical power: 9th grade. 33. Dependence of speed on time at uniformly accelerated motion: 34. Dependence of the radius of the vector on time during uniformly accelerated motion: 35. Newton’s second law: 36. Newton’s third law: 37. Law of universal gravitation:
5 38. Centripetal acceleration: 39. Impulse: 40. Law of change in energy: 41. Relationship between period and frequency: 42. Relationship between wavelength and frequency: 43. Law of change in impulse: 44. Ampere’s law: 45. Energy magnetic field current: 46. Transformer formula: 47. Effective current value: 48. Effective voltage value:
6 49. Capacitor charge: 50. Electrical capacity of a flat capacitor: 51. Total capacity of parallel connected capacitors: 52. Energy electric field capacitor: 53. Thompson's formula: 54. Photon energy: 55. Photon absorption by an atom: 56. Relationship between mass and energy: 1. Absorbed radiation dose: 2. Equivalent radiation dose:
7 57. The law of radioactive decay: 10th grade. 58. Angular velocity: 59. Relationship between velocity and angular velocity: 60. Law of addition of velocities: 61. Sliding friction force: 62. Static friction force: 3. Medium resistance force: [ 63. Potential energy of an extended spring: 4. Radius vector of the center of mass:
8 64. Amount of substance: 65. Mendeleev-Clapeyron equation: 66. Basic molecular equation kinetic theory: 67. Particle concentration: 68. Relationship between average kinetic energy particles and gas temperature: 69. Internal energy of gas: 70. Gas work: 71. First law of thermodynamics: 72. Carnot machine efficiency: 5. Thermal linear expansion: 6. Thermal volumetric expansion:
9 73. Coulomb's law: 74. Electric field strength: 75. Electric field strength point charge: 7. Flow of electric field strength: 8. Gauss's theorem: 76. Potential energy of a charge at constant: 77. Potential energy of interaction of bodies: 78. Potential energy of interaction of charges: 79. Potential: 80. Potential difference: 81. Relationship between the intensity of a homogeneous electric fields and voltages:
10 82. Total electrical capacity of series-connected capacitors: 83. Dependence resistivity from temperature: 84. Kirchhoff's first rule: 85. Ohm's law for complete chain: 86. Kirchhoff's second rule: 87. Faraday's law: 11th grade. 9. Biot-Savart-Laplace law: 10. Magnetic induction of an infinite wire: 88. Lorentz force:
11 89. Magnetic flux: 90. Law electromagnetic induction: 91. Inductance: 92. Dependence of a quantity changing according to a harmonic law on time: 93. Dependence of the rate of change of a quantity changing according to a harmonic law on time: 94. Dependence of the acceleration of a change on a quantity changing according to a harmonic law on time: 95. Period of oscillation of a thread pendulum: 96. Period of oscillation spring pendulum: 11. Capacitance: 12. Inductive reactance:
12 13. Resistance for alternating current: 97. Formula thin lens: 98. Interference maximum condition: 99. Interference minimum condition: 14. Coordinate Lorentz transformations: 15. Time Lorentz transformations: 16. Relativistic law addition of velocities: 100. Dependence of body mass on speed: 17. Relativistic relationship between energy and momentum:
13 101. Photoelectric effect equation: 102. Red border of the photoelectric effect: 103. De Broglie wavelength:
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The Unified State Exam covers information on the entire physics course from grades 7 to 11. However, if some physics formulas for the Unified State Exam are memorized well on their own, you have to work on others. We will look at some formulas that are useful for solving various problems.
Kinematics
Let's start traditionally with kinematics. Common mistake this is an incorrect calculation average speed uneven rectilinear motion. IN in this case They try to solve problems using the arithmetic mean. However, everything is not so simple. Arithmetic mean – only special case. And to find the average speed of movement there is a useful formula:
where S is the entire path traveled by the body in certain time t.
Molecular Kinetic Theory (MKT)
MCT can set many insidious “traps” for an inattentive student. To avoid this, you need to be fluent in physics formulas for the Unified State Exam in this area.
Let's start with the Mendeleev-Clapeyron law, which is used for ideal gases. It sounds like this:
where p is the gas pressure,
V is the volume it occupies,
n – amount of gas,
R – universal gas constant,
T – temperature.
Pay attention to examples of problems using this law.
Everyone has an idea of what humidity is. Relative humidity values are reported daily in the media. The following formula will be useful for the exam: 
here f – relative air humidity,
ρ – density of water vapor in the air,
ρ0 – density saturated steam at a specific temperature.
This last value is a tabular value, so it should be in the problem statement.
Thermodynamics
Thermodynamics is a branch quite close to MCT, so many concepts overlap. Thermodynamics is based on its two principles. Almost every problem in this field requires knowledge and application of the first law of thermodynamics, expressed by the formula
This is formulated as follows:
The amount of heat Q that was received by the system is spent on performing work A on external bodies and change ΔU of the internal energy of a given system.
Archimedes' force
Finally, let's talk about the behavior of bodies immersed in a liquid. Obviously, each of them is acted upon by gravity directed vertically downward. But in liquid all bodies weigh less. This is due to the partial compensation of gravity by the oppositely directed Archimedes force. Its value is 
Thus, this force, trying to push a body out of a liquid, depends on the density of that very liquid and the volume of the part of the body immersed in it. Archimedes' force also acts in gases, but due to the insignificance of the density of gases, it is usually neglected.
The Unified State Exam tests a student's knowledge in various areas physics. Formulas for the Unified State Exam in physics contribute to the successful solution of problems (you can use) and common understanding basic physical processes.
As a rule, it is mathematics, and not physics, that is considered to be the queen exact sciences. We believe that this statement is controversial, because technical progress impossible without knowledge of physics and its development. Due to its complexity, it is unlikely to ever be included in the list of mandatory state exams, but, one way or another, applicants technical specialties you have to submit it without fail. The most difficult thing is to remember the numerous laws and formulas in physics for the Unified State Exam; we will talk about them in this article.
Secrets of preparation
Perhaps this is due to the apparent complexity of the subject or the popularity of professions in the humanities and management, but in 2016 only 24% of all applicants decided to take physics, in 2017 - only 16%. Such statistics involuntarily make one wonder whether the requirements are too high or whether the level of intelligence in the country is simply falling. For some reason I can’t believe that so few 11th grade students want to become:
- engineers;
- jewelers;
- aircraft designers;
- geologists;
- pyrotechnicians;
- ecologists,
- production technologists, etc.
Knowledge of formulas and laws of physics in equally necessary for developers intelligent systems, computer technology, equipment and weapons. At the same time, everything is interconnected. For example, specialists producing medical equipment once studied an in-depth course atomic physics, because without isotope separation, we will have neither X-ray equipment nor radiation therapy. Therefore, the creators of the Unified State Exam tried to take into account all topics school course and it seems they didn’t miss a single one.
Those students who regularly attended all physics lessons up to last call, they know that in the period from grades 5 to 11, about 450 formulas are studied. It is extremely difficult to single out at least 50 of these four and a half hundred, since they are all important. Similar opinion, obviously, the developers of the Codifier also adhere to. However, if you are unusually gifted and not limited in time, 19 formulas will be enough for you, because if you wish, you can derive all the rest from them. We decided to take the main sections as a basis:
- mechanics;
- molecular physics;
- electromagnetism and electricity;
- optics;
- atomic physics.
Obviously, preparation for the Unified State Exam should be daily, but if for some reason you have started studying all the material only now, a real miracle can be accomplished by the express course offered by our center. We hope these 19 formulas will also be useful to you:
You probably noticed that some physics formulas for passing the Unified State Exam left without explanation? We leave it to you to study them yourself and discover the laws by which absolutely everything is done in this world.
In order to successfully prepare for CT in physics and mathematics, among other things, three essential conditions must be met:
- Study all topics and complete all tests and assignments given in educational materials on that website. To do this, you need nothing at all, namely: devote three to four hours every day to preparing for the CT in physics and mathematics, studying theory and solving problems. The fact is that CT is an exam where it is not enough just to know physics or mathematics, you also need to be able to solve it quickly and without failures a large number of tasks for different topics and of varying complexity. The latter can only be learned by solving thousands of problems.
- Learn all formulas and laws in physics, and formulas and methods in mathematics. In fact, this is also very simple to do, necessary formulas in physics there are only about 200 pieces, and in mathematics even a little less. Each of these items contains about a dozen standard methods solving problems of a basic level of complexity, which can also be learned, and thus completely automatically and without difficulty solved in right moment most CT. After this, you will only have to think about the most difficult tasks.
- Visit all three stages rehearsal testing in physics and mathematics. Each RT can be visited twice to decide on both options. Again, on the CT, in addition to the ability to quickly and efficiently solve problems, and knowledge of formulas and methods, you must also be able to properly plan time, distribute forces, and most importantly, correctly fill out the answer form, without confusing the numbers of answers and problems, or your own last name. Also, during RT, it is important to get used to the style of asking questions in problems, which may seem to an unprepared person very unusual.
Successful, diligent and responsible implementation of these three points will allow you to show up on the CT excellent result, the maximum of what you are capable of.
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