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Физика мен геометрия

Total questions: 130

Worksheet time: 1hrs 13mins

Name
Class
Date
1.

Who is the founder of the connection between physics and geometry?

a)

Poincaré

b)

Lorentz

c)

Einstein

d)

Descartes

e)

Ampère and Lorentz

2.

Who are the founders of the AST?

a)

Einstein Poincaré Lorentz

b)

Einstein Papov

c)

Descartes Labachevsky

d)

Ampère Coulomb

e)

Descartes Labachevsky and Hamilton

3.

How many dimensions does Minkowski space have?

a)

four dimensions

b)

three dimensions

c)

one dimension

d)

two dimensions

e)

dimensionless

4.

What is the basis of the theory of relativity?

a)

Einstein's postulates

b)

Bohr's postulates

c)

Newton's laws

d)

Lorentz transformations

e)

Galileo's transformations

5.

How many types of interactions are there in physics?

a)

4

b)

3

c)

2

d)

5

e)

1

6.

Which city is associated with the word magnetism?

a)

Matnesia

b)

Madrid

c)

Moscow

d)

Egypt

e)

Malaysia

7.

In which year did Ørsted determine that currents passing through a conductor create a magnetic field around them?

a)

1820

b)

1798

c)

1825

d)

1822

e)

1821

8.

Who discovered the phenomenon of electromagnetic induction and when?

a)

Faraday 1931

b)

Ohm 1932

c)

Hertz 1836

d)

Lorentz 1930

e)

Faraday 1932

9.

What is the unit of measurement for current density?

a)

A/m²

b)

V/s

c)

Ω·m

d)

A

e)

Current density is dimensionless

10.

What is the unit of measurement for angular frequency?

a)

Hz

b)

A

c)

Ω

d)

V

e)

F

11.

What is angular displacement?

a)

a vector quantity equal to the angle of rotation, with direction corresponding to the direction of the advancing motion of a right-handed screw

b)

a vector quantity describing the rate of change of speed and direction

c)

a vector quantity that defines the speed of motion and its direction over a given time period

d)

a vector drawn from the initial position of a moving point to its position at the end of the time period

e)

a system of coordinates and clocks associated with the reference body

12.

What is included in the basis of the AST?

a)

Einstein's 2 postulates

b)

Bohr's postulates

c)

Isoprocesses

d)

Lorentz transformations

e)

Galileo transformations

13.

What is the unit of measurement for pressure?

a)

Pa

b)

F

c)

V

d)

A

e)

Ω

14.

What is the unit of measurement for inductance?

a)

H

b)

A

c)

F

d)

V

e)

C

15.

If the angular velocity of a rotating body increases by 3 times, how does the kinetic energy change?

a)

increases by 9 times

b)

decreases by 3 times

c)

increases by 6 times

d)

decreases by 9 times

e)

increases by 3 times

16.

A moment of inertia of 10 kgm², a solid disk rotates with an angular acceleration of 2 rad/s². Determine the torque:

a)

20 N m

b)

4 N m

c)

12 N m

d)

02 N m

e)

5 N m

17.

Newton's first law is also called:

a)

Inertia

b)

Dynamics of translational motion

c)

Law of conservation of energy

d)

Universal gravitation

e)

Dynamics of variable motion

18.

What is diffraction?

a)

The bending of light waves around obstacles

b)

The oscillation of light vectors in a specific direction

c)

Every point in the space reached by light waves becomes a secondary wave source

d)
19.

What is meant by light interference?

a)

The superposition of two or more coherent waves

b)

The emission of electrons from the surface of a substance due to light

c)

The passage of light waves around an obstacle

d)

The oscillation of the light vector in a certain direction

e)

The point in space where light waves reach becomes a secondary wave source

20.

A body that completely absorbs various frequencies of radiation at different temperatures is called?

a)

black

b)

non-elastic

c)

elastic

d)

absolute solid

e)

gray

21.

What is the discreteness of electric charge?

a)

The charge of any body is an integer multiple of some elementary electric charge

b)

The charge of some bodies is an integer multiple of some elementary electric charge

c)

The electric charge of any body can take any value

d)

The electric charge of some bodies can take any value

e)

The electric charge of any body can only take values greater than some elementary electric charge

22.

How is the law of conservation of charge formulated?

a)

The algebraic sum of electric charges in any closed system remains unchanged regardless of the processes occurring within that system

b)

The algebraic sum of electric charges in any system exchanging charge with external bodies remains unchanged regardless of the processes occurring within that system

c)

The algebraic sum of electric charges in any system remains unchanged regardless of the processes occurring within that system

d)

The algebraic sum of electric charges in some systems changes depending on the processes occurring within that system

e)

The ratio of positive and negative charges in some systems remains unchanged regardless of the processes occurring within that system

23.

Which definition corresponds to conductors? In conductors...

a)

Electric charge can move throughout the entire volume of the body

b)

Electric charges can only move in the direction of the field

c)

Charge carriers are only negative ions

d)

Charge carriers are only positive ions

e)

Charge carriers vibrate at the nodes of the crystal lattice

24.

What is the unit of measurement for electric constant?

a)

C^2/(Nm^2)

b)

C/Nm^2

c)

C

d)

Nm^2/C^2

e)

m/F

25.

If two like charges are suspended on a thread and the angle between them deviates, how does this angle change if the dielectric constant of the surrounding medium increases?

a)

Decreases

b)

Increases

c)

Remains unchanged

d)

Doubles

e)

Quadruples

26.

Two point charges

4 lines
27.

If the dielectric permittivity of the environment increases, how does the angle change?

a)

Decreases

b)

Increases

c)

Remains unchanged

d)

Increases by 2 times

e)

Increases by 4 times

28.

When two point charges are in air and interact with some force, how should their distance be changed to interact with the same force when placed in oil?

a)

Need to bring closer

b)

Need to move away

c)

Do not change

d)

Increase by 2 times

e)

Increase by 4 times

29.

What factors does the Coulomb force between two point charges not depend on?

a)

The position of surrounding bodies

b)

The magnitude of the first charge

c)

The magnitude of the second charge

d)

The properties of the medium

e)

The distance between charged bodies

30.

Which of the following physical quantities will be the force characteristic of the electric field?

a)

Electric field strength

b)

Potential

c)

Coulomb force

d)

Work of electric charge displacement

e)

Potential energy

31.

Which of the given electric fields is homogeneous?

a)

The field of an infinitely uniformly charged plane

b)

The field of an infinitely long uniformly charged wire

c)

The field of a uniformly charged sphere

d)

The field of an infinitely long uniformly charged cylinder

e)

The field of a uniformly charged sphere

32.

What factors does the work of electric forces during the displacement of an electric charge depend on?

a)

The initial and final positions of the displacement

b)

The shape of the path

c)

The length of the path

d)

The slope of the path

e)

The initial position of the displacement

33.

Show a physical quantity that can be the energy characteristic of the field.

a)

Potential

b)

Electric field strength

c)

Work of charge displacement

d)

Potential energy of charge

e)

Force acting on charge in the field

34.

At what angle does the line of force intersect the equipotential surface?

a)

90 degrees

b)

30 degrees

c)

60 degrees

d)

180 degrees

e)

Obtuse angle

35.

What is the work of electric forces when moving a charge along an equipotential surface?

a)

Equal to zero

b)

More

c)

600

d)

Positive

e)

Negative

36.

What factors does the capacitance of a capacitor not depend on?

a)

The arrangement of surrounding bodies

b)

Dielectric material

c)

Area of the plates

d)

Dielectric permittivity

e)

Distance between the plates

37.

How does the capacitance of a parallel plate capacitor change when a positively charged sphere is brought closer?

a)

Remains unchanged

b)

Increases

c)

Decreases

d)

Sometimes increases and sometimes decreases

e)

Decreases by e times

38.

How does the capacitance of a sphere change when its radius is increased?

a)

Increases

b)

Decreases

c)

Remains unchanged

d)

Sometimes increases and sometimes decreases

e)

Decreases by ε times

39.

If a charged plane capacitor is disconnected from the EMF source and then immersed in oil, how does the attractive force between the plates change?

a)

Decreases

b)

Increases

c)

Remains unchanged

d)

Sometimes increases and sometimes decreases

e)

Increases by ε times

40.

Which of the given processes is conductive?

4 lines
41.

How does the attractive force between the plates change when a capacitor is immersed in oil?

a)

Decreases

b)

Increases

c)

Remains unchanged

d)

Sometimes increases and sometimes decreases

e)

Increases by ε times

42.

Which of the listed processes is a conductive flow?

a)

Ordered movement of microscopic charges within macroscopic bodies

b)

Displacement of charged macroscopic bodies in space

c)

Flow of electrons in a vacuum

d)

Chaotic thermal motion of electrons in a metal

e)

Displacement of positively charged macroscopic bodies in space

43.

Which of the listed processes is a convective flow?

a)

Displacement of charged macroscopic bodies in space

b)

Flow of electrons in a vacuum

c)

Chaotic thermal motion of electrons in a metal

d)

Ordered movement of microscopic charges within macroscopic bodies

e)

Ordered movement of ions within a solution

44.

Which of the listed physical quantities is a vector quantity?

a)

Current density

b)

Current strength

c)

Potential difference

d)

Electric charge

e)

Power

45.

Which of the listed factors cannot be the reason for the existence of a steady current?

a)

Coulomb forces

b)

Chemical reaction energy

c)

Mechanical forces

d)

Mechanical energy

e)

Constant potential difference

46.

Which of the listed physical quantities is equal to the work done by the sum of Coulomb and external forces when a unit positive charge moves in a part of the circuit?

a)

Potential difference

b)

Potential

c)

Voltage

d)

Electromotive force

e)

Power

47.

Which of the listed factors does the resistance of a conductor not depend on?

a)

Current strength

b)

Cross-section

c)

Length of the conductor

d)

Material of the conductor

e)

Volume of the conductor

48.

What is the power of a current source called when it is useful?

a)

Power dissipated in the external part of the circuit

b)

Power dissipated in the entire closed circuit

c)

Power dissipated inside the current source

d)

Power dissipated in one of the elements of the current source

e)

Power dissipated inside and outside the current source

49.

How does the useful power of the current source change when the external resistance is increased?

a)

Gradually increases

b)

Gradually decreases

c)

Remains unchanged

d)

Increases suddenly

e)

Decreases suddenly

50.

How does the useful power of the current source change when the external resistance is increased?

a)

Gradually decreases

b)

Gradually increases

c)

Remains unchanged

d)

Increases suddenly

e)

Decreases suddenly

51.

Under what condition does the power dissipated in the external resistance reach its maximum value?

a)

R=r

b)

R>r

c)

R

d)

R>>r

e)

R<

52.

Which of the listed laws determines the intensity of the magnetic field induced by a conductor carrying current?

a)

Biot-Savart-Laplace law

b)

Ampere's law

c)

Faraday's law

53.

Which of the given laws determines the intensity of the magnetic field generated by a conductor with current?

a)

Biot-Savart-Laplace law

b)

Ampere's law

c)

Faraday's law

d)

Lenz's law

e)

Coulomb's law

54.

How does the Lorentz force affect the state of the electron?

a)

Changes the direction of velocity

b)

Changes the magnitude of velocity

c)

Changes the kinetic energy of the electron

d)

Changes the potential energy of the electron

e)

Accelerates the electron

55.

An electron entered a uniform magnetic field perpendicularly to the lines of induction. Show the form of the trajectory of the electron in the magnetic field.

a)

Circle

b)

Helical line

c)

Flat spiral

d)

Straight line

e)

Ellipse

56.

The internal magnetic field intensity vector of the given magnetics is directed opposite to the external field intensity vector.

a)

Diamagnetic

b)

Paramagnetic

c)

Ferromagnetic

d)

Antiferromagnetic

e)

Ferrite

57.

What does electrodynamics study?

a)

Interaction of any electric charges

b)

Interaction of electric charges

c)

Interaction of electric charges at rest in a selected system

d)

Interaction of any bodies

e)

Interaction of bodies in a closed system

58.

What does electrostatics study?

a)

Interaction of electric charges at rest in a selected system

b)

Interaction of electric charges

c)

Interaction of any electric charges

d)

Interaction of any bodies

e)

Interaction of bodies in a closed system

59.

An electric charge is…

a)

A property of bodies

b)

A process

c)

A phenomenon

d)

Displacement of bodies

e)

Interaction of bodies

60.

What does an electric field describe?

a)

Interaction of electric charges at rest in a selected system

b)

Interaction of electric charges

c)

Interaction of any electric charges

d)

Interaction of any bodies

e)

Interaction of bodies in a closed system

61.

There are two positively charged (1 and 2) particles and two negatively charged (3 and 4) particles. Which of them attract each other?

a)

Particle 1 with particles 3 and 4, particle 2 with particles 3 and 4

b)

Only 1 and 2

c)

1 and 2 attract each other, 3 and 4 attract each other

d)

Particle 1 with particles 3 and 4, particle 2 with particles 3 and 1

e)

Particle 1 with particles 3 and 2, particle 2 with particles 3 and 4

62.

As a result of electrification, a body gained a charge of C. How many electrons did the body gain or lose?

a)

Gained 4 electrons

b)

Gained 1 electron

c)

Lost 1 electron

d)

Lost 4 electrons

e)

Gained 4 electrons

63.

Electrification is…

a)

A process

b)

A property of bodies

c)

A physical quantity

d)

Displacement of bodies

e)

Interaction of bodies

64.

For electrification, … is required.

a)

Two heterogeneous bodies or one charged and one uncharged

b)

Only two heterogeneous bodies

c)

Only two homogeneous bodies

d)

Any two bodies

65.

What is required for electrification?

a)

Two heterogeneous bodies or one charged and one uncharged

b)

Only two heterogeneous bodies

c)

Only two homogeneous bodies

d)

Any two bodies

e)

Two heterogeneous bodies or two charged bodies

66.

What is the purpose of an electroscope?

a)

To detect electric charge

b)

Any systems

c)

To measure the amount of electric charge

d)

To measure potential difference

67.

What is the purpose of an electrometer?

a)

To detect electric charge and measure potential difference

b)

To detect electric charge

c)

Any systems

d)

To measure the amount of electric charge

e)

To measure potential difference

68.

The law of conservation of electric charge is valid for?

a)

Isolated systems

b)

Any systems

c)

Non-isolated systems

d)

Some systems

e)

Mechanical systems

69.

What will be the charge of two droplets with charges +5e and -3e?

a)

+2e

b)

+8e

c)

-8e

d)

-2e

e)

+6e

70.

If the magnitudes of two point charges remain unchanged, how will the Coulomb force change if the distance between them is increased?

a)

Increases 9 times

b)

Increases 3 times

c)

Decreases 3 times

d)

Decreases 9 times

e)

Remains unchanged

71.

If the magnitude of one of the two point charges remains unchanged and is decreased by half, how will the Coulomb force change?

a)

Decreases 2 times

b)

Increases 2 times

c)

Decreases 4 times

d)

Increases 4 times

e)

Remains unchanged

72.

If the magnitude of one of the two point charges is decreased by 3 times, how will the Coulomb force change?

a)

Decreases 3 times

b)

Increases 3 times

c)

Decreases 9 times

d)

Increases 9 times

e)

Remains unchanged

73.

If the magnitude of one of the two point charges is increased by 2 times, how will the Coulomb force change?

a)

Increases 2 times

b)

Decreases 4 times

c)

Decreases 2 times

d)

Increases 4 times

e)

Remains unchanged

74.

If the distance between two charged particles is increased by 5 times, how will the Coulomb force change?

a)

Decreases 25 times

b)

Increases 5 times

c)

Decreases 5 times

d)

Increases 25 times

e)

Remains unchanged

75.

What does the electric field vector flow through a surface depend on?

a)

The electric field vector and the area of the surface

b)

Only the electric field vector

c)

Only the area of the surface

d)

Positive charge

e)

Negative charge

76.

What can the electric flux of the electric field vector be?

a)

Positive and negative

b)

Only positive

c)

Only negative

d)

Sometimes positive and sometimes negative

e)

Sometimes negative and sometimes positive

77.

What is the electric flux through a closed surface with no charge?

a)

Equal to zero

b)

Greater than zero

c)

Less than zero

d)

Much greater than zero

e)

Much less than zero

78.

What does the electric flux through a closed surface depend on?

a)

Only on the amount of charge

b)

Depends on the charge distribution inside the surface

c)

Depends on the area of the surface

d)

Depends on the shape of the surface

e)

Does not depend on the charge

79.

Uniformly distributed in volume

4 lines
80.

Is the charge dependent on the position of the charge?

a)

depends on the charge

b)

depends on the area of the plate

c)

depends on the shape of the plate

d)

does not depend on the charge

81.

What should be chosen to calculate the field of a uniformly charged sphere by volume?

a)

sphere

b)

cylinder

c)

complex shape

d)

ellipse

e)

circle

82.

What is the electric field inside a uniformly charged sphere?

a)

equal to zero

b)

greater than zero

c)

depends on the amount of charge in the sphere

d)

depends on the formula of the sphere and the amount of charge

e)

less than zero

83.

What is the electric field intensity outside a uniformly charged cylinder?

a)

decreases inversely proportional to the square of the distance

b)

decreases inversely proportional to the distance

c)

decreases inversely proportional to the cube of the distance

d)

is independent of the distance

e)

increases inversely proportional to the square of the distance

84.

What is the electric field intensity of a uniformly charged sphere by volume?

a)

decreases inversely proportional to the square of the distance

b)

decreases inversely proportional to the distance

c)

is independent of the distance

d)

increases directly proportional to the distance

e)

increases directly proportional to the square of the distance

85.

What is the electric field intensity inside a uniformly charged sphere?

a)

increases directly proportional to the distance

b)

decreases inversely proportional to the square of the distance

c)

decreases inversely proportional to the distance

d)

increases directly proportional to the square of the distance

e)

decreases directly proportional to the distance

86.

What is the electric field intensity inside a uniformly charged cylinder?

a)

does not depend on the distance

b)

increases directly proportional to the distance

c)

depends on the distance

d)

decreases inversely proportional to the distance

e)

increases directly proportional to the square of the distance

87.

In which direction are the electric field lines of a uniformly charged sphere directed?

a)

perpendicular to the spherical surface of the concentric charged sphere

b)

tangentially to the spherical surface of the concentric charged sphere

c)

along a more complex curve

d)

at an angle of 0 degrees to the spherical surface of the concentric charged sphere

e)

at an angle of 30 degrees to the spherical surface of the concentric charged sphere

88.

What is the maximum value of the electric field intensity modulus of a uniformly charged sphere with radius and density?

a)

at a distance from the center of the sphere

b)

at the center of the sphere

c)

at a distance from the center of the sphere

d)

at infinity

e)

at a distance of 3R from the center of the sphere

89.

What is our universe?

a)

is a collection of material objects that interact and are in constant motion

b)

does not always interact

90.

What is our universe?

a)

A collection of material objects that interact and are in constant motion at all times.

b)

A collection of material objects that do not always interact and are in constant motion.

c)

A collection of material objects that interact and may not always be in constant motion.

d)

A collection of material objects that interact at certain times and are not in constant motion.

e)

A collection of material objects that do not interact at all times and may be in constant motion.

91.

What is a material object?

a)

Things that exist independently of us and our consciousness.

b)

Things that exist subjectively to us and our consciousness.

c)

Things that exist subjectively to us and depend on our consciousness.

d)

Things that exist independently of us and depend on our consciousness.

e)

Things that exist independently of us and may depend on our consciousness in certain situations.

92.

In the current development level of physics, matter is divided into how many types?

a)

Two types: substances and fields.

b)

Three types: substances, molecules, and fields.

c)

Four types: substances, elementary particles, atoms, and gravitational fields.

d)

Two types: electromagnetic fields and electric charges.

e)

Two types: magnetic fields and elementary particles.

93.

The inseparable property of matter is?

a)

Motion

b)

Electric field

c)

Magnetic field

d)

Gravitational field

e)

Defined shape

94.

What is motion?

a)

The various changes of matter in nature.

b)

The various changes of matter only in systems connected to the Earth.

c)

The displacement of matter only in systems connected to the Sun.

d)

The various forms of matter in nature.

e)

The various displacements of matter in nature.

95.

Motion

a)

The form of existence of matter, that is, motion cannot exist without matter.

b)

The form of existence of matter, that is, motion can exist without matter.

c)

The method of displacement of matter, that is, displacement cannot exist without matter.

d)

The form of existence of matter, that is, motion cannot exist without matter in certain situations.

e)

The form of existence of matter, that is, motion cannot exist without matter in some cases but can in others.

96.

The movement of matter occurs?

a)

Only in space and at a specific time.

b)

Only in space and on Earth.

c)

Only in space and in the solar system.

d)

Only on the Moon.

97.

The movement of matter

a)

occurs only in space and at a specific time

b)

occurs only in space and on Earth

c)

occurs only in space and in the solar system

d)

occurs only on the Moon and in the sea

e)

occurs only on Earth, the Sun, the Moon, and in space

98.

Mechanical movement means

a)

the mutual displacement of bodies within a specific time

b)

the displacement of bodies within a limited time

c)

the displacement of bodies within unlimited time

d)

the rotational movement of bodies within a unit of time

e)

the linear movement of bodies within unlimited time

99.

Kinematics

a)

studies motion without regard to the causes of motion

b)

studies motion with regard to the causes of motion

c)

studies motion regardless of the shape of its trajectory

d)

studies motion with regard to the forces causing motion

100.

Dynamics

a)

studies motion with regard to the causes of motion

b)

studies motion without regard to the causes of motion

c)

studies motion regardless of the shape of its trajectory

d)

studies motion without regard to the forces causing motion

101.

A material point means

a)

a body whose volume can be neglected in the conditions of a given problem

b)

a body whose mass can be neglected in the conditions of a given problem

c)

a body whose density can be neglected in the conditions of a given problem

d)

a body whose deformation can be neglected in the conditions of a given problem

e)

a body whose shape can be neglected in the conditions of a given problem

102.

A reference system means

a)

a coordinate system fixed to reference bodies

b)

bodies used for comparing motion

c)

a body at rest

d)

a coordinate system fixed to a body at rest

e)

a body in motion

103.

A trajectory means

a)

the trace left by a given point in a fixed reference system during its movement in space

b)

the trace left by a given point during its movement in space

c)

the geometric location of the points passed by a given point during its movement

d)

the geometric location of the points passed by a given point during its movement in space

104.

A displacement vector means

a)

the vector drawn from the initial position of a moving point to its position at a given moment in time

b)

the vector drawn from the initial position of a moving point

105.

What is meant by the displacement vector?

a)

It refers to the vector drawn from the initial position of a moving point to its position at a given moment in time.

b)

It refers to the vector drawn from the position of a moving point at a given moment in time to its initial position.

c)

It refers to the vector drawn from the origin to the initial position of a moving point.

d)

It refers to the vector drawn from the origin to the position of a point at a given moment in time.

e)

It refers to the vector drawn from the position of a point at a given moment in time to the origin.

106.

According to the independence law of motion, if a point displaces twice at the same time, then its final position...

a)

is not dependent on whether the two displacements occurred simultaneously or sequentially.

b)

is dependent on whether the two displacements occurred sequentially or at the same time.

c)

is dependent on whether the two displacements occurred simultaneously or sequentially.

d)

is dependent on when the two displacements occurred.

e)

is dependent on the order of the two displacements.

107.

If the direction of the velocity of a point does not change during its motion, then it is...

a)

linear motion.

b)

curvilinear motion.

c)

uniform motion.

d)

variable motion.

e)

linear variable motion.

108.

If the direction of the velocity of a point changes during its motion, then it is...

a)

curvilinear motion.

b)

linear motion.

c)

uniform motion.

d)

variable motion.

e)

linear variable motion.

109.

If the magnitude of the velocity of a point remains constant during its motion, then it is...

a)

uniform motion.

b)

linear motion.

c)

curvilinear motion.

d)

variable motion.

e)

linear variable motion.

110.

If the magnitude of the velocity of a point changes during its motion, then it is...

a)

variable motion.

b)

linear motion.

c)

curvilinear motion.

d)

uniform motion.

e)

linear variable motion.

111.

An absolute rigid body is defined as...

a)

a body whose deformation can be neglected.

b)

a body whose volume can be neglected.

c)

a body whose size is significant.

d)

a body whose volume is significant.

e)

a body whose deformation is significant.

112.

The progressive motion of a body is defined as...

a)

the motion in which any straight line drawn in the body moves parallel to itself.

b)

the motion in which any straight line drawn in the body moves parallel to another straight line.

c)

the motion in which any straight line drawn in the body moves parallel to any plane.

d)

the motion in which any straight line drawn in the body moves.

e)
113.

What is the rotational motion of a body?

a)

The motion of all points of the body moving in parallel planes drawing concentric circles and lying on a fixed line called the axis.

b)

The motion of all points of the body moving in perpendicular planes drawing concentric circles and lying on a fixed line called the axis.

c)

The motion of all points of the body moving in perpendicular planes drawing circles and lying on a moving line called the axis.

d)

The motion of all points of the body moving in parallel planes drawing circles and lying on a moving line called the axis.

114.

What is the linear velocity of a rotating body?

a)

It varies depending on the radius.

b)

It is the same depending on the path.

c)

It is the same depending on the distance from the axis.

d)

It varies depending on the direction of rotation.

e)

It varies depending on the direction of motion.

115.

What is a reference frame?

a)

A system of coordinates and clocks associated with a reference body.

b)

The motion of a body whose all points move along circles centered on a fixed line called the axis.

c)

A body with respect to which the positions of other bodies are determined.

d)

A motion that remains parallel to its initial position.

e)

A line drawn by a material point (or body) moving relative to the chosen reference frame.

116.

What is velocity?

a)

A vector quantity that defines the speed of motion and its direction over a given time period.

b)

A vector quantity that describes the change in speed and direction of velocity.

c)

A vector drawn from the initial position of the moving point to its position at a given time.

d)

A vector quantity equal to the angle of rotation with a direction corresponding to the direction of the forward motion of a screw.

e)

It is the same as the direction of the friction force.

117.

What is acceleration?

a)

A vector quantity that describes the change in speed and direction of velocity.

b)

A vector quantity that defines the rate of change of velocity.

118.

What is acceleration?

a)

Change in the magnitude and direction of velocity

b)

A vector that determines the speed and direction of motion during a given time period

c)

A vector drawn from the initial position of a moving point to its position at the considered time period

d)

A vector whose magnitude is equal to the angle of rotation and whose direction corresponds to the direction of the forward motion of a right-handed screw

119.

What is the displacement vector?

a)

A vector drawn from the initial position of a moving point to its position at the considered time period

b)

Change in the magnitude and direction of velocity

c)

A vector that determines the speed and direction of motion during a given time period

d)

A vector whose magnitude is equal to the angle of rotation and whose direction corresponds to the direction of the forward motion of a right-handed screw

120.

Who is the founder of the connection between physics and geometry?

a)

Poincaré

b)

Lorentz

c)

Einstein

d)

Descartes

e)

Ampère and Lorentz

121.

Who are the founders of the AST?

a)

Einstein, Poincaré, Lorentz

b)

Einstein, Papov

c)

Descartes, Lobachevsky

d)

Ampère, Coulomb

e)

Descartes, Lobachevsky and Hamilton

122.

How many dimensions does Minkowski space have?

a)

Four-dimensional

b)

Three-dimensional

c)

One-dimensional

d)

Two-dimensional

e)

Dimensionless

123.

What is the basis of the theory of relativity?

a)

Einstein's postulates

b)

Bohr's postulates

c)

Newton's laws

d)

Lorentz transformations

e)

Galilean transformations

124.

How many types of interactions are there in physics?

a)

4

b)

3

c)

2

d)

5

e)

1

125.

Which city is associated with the word magnetism?

a)

Matnesia

b)

Madrid

c)

Moscow

d)

Egypt

e)

Malaysia

126.

In which year did Ørsted discover that currents passing through a conductor create a magnetic field around them?

a)

1820

b)

1798

c)

1825

d)

1822

e)

1821

127.

Who discovered the phenomenon of electromagnetic induction and when?

a)

Faraday 1931

b)

Ohm 1932

c)

Hertz 1836

d)

Lorentz 1930

e)

Faraday 1932

128.

What is the unit of measurement for current density?

a)

A/m²

b)

V/s

c)

Ω·m

d)

A

e)

Current density is dimensionless

129.

What is the unit of measurement for angular frequency?

a)

Hz

b)

A

c)

Ω

d)

V

e)

F

130.

What is angular displacement?

a)

A vector whose magnitude is equal to the angle of rotation and whose direction corresponds to the direction of the forward motion of a right-handed screw

b)

Change in the magnitude and direction of velocity

c)

A vector that determines the speed and direction of motion during a given time period

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