90 Multiple Choice Questions on Laws of Motion with Answers

  • April 10, 2021
  • Science
multiple choice questions on laws of motion with answers

Newton’s laws of motion are three physical laws that, collectively, laid the inspiration for classical mechanics. Multiple-choice questions on laws of motion with answers can give a good conception about the law as well as its utility.

They describe the connection between a physique and the forces performing upon it, and its motion in response to these forces where these multiple-choice questions on laws of motion with answers will be able to multiply their usefulness.

More exactly, the primary regulation defines the power qualitatively, the second regulation affords a quantitative measure of the power, and the third asserts {that a} single remoted power does not exist.

These three legal guidelines have been expressed in a number of methods, over practically three centuries. Multiple-choice questions on laws of motion with answers are helpful to discuss with friends, teacher and fit for any examination.

Newton’s first law states that-

Every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

This is normally taken as the definition of inertia. The key point here is that if there is no net force acting on an object (if all the external forces cancel each other out) then the object will maintain a constant velocity. If that velocity is zero, then the object remains at rest. If an external force is applied, the velocity will change because of the force.

The second law states that-

In an inertial frame of reference, the vector sum of the forces F on an object is equal to the mass m of that object multiplied by the acceleration a of the object: F = ma. (It is assumed here that the mass m is constant

The law defines a force to be equal to a change in momentum (mass times velocity) per change in time. Newton also developed the calculus of mathematics, and the “changes” expressed in the second law are most accurately defined in differential forms. (Calculus can also be used to determine the velocity and location variations experienced by an object subjected to an external force.) For an object with a constant mass m, the second law states that the force F is the product of an object’s mass and its acceleration a:

F = m * a

For an externally applied force, the change in velocity depends on the mass of the object. A force will cause a change in velocity; and likewise, a change in velocity will generate a force. The equation works both ways.

The third law states that

for every action (force) in nature there is an equal and opposite reaction.

In other words, if object A exerts a force on object B, then object B also exerts an equal force on object A. Notice that the forces are exerted on different objects. The third law can be used to explain the generation of lift by a wing and the production of thrust by a jet engine.

Let’s solve the multiple-choice questions on laws of motion with answers below

1. Who is the father of the study of dynamics – the study of motion?

Correct! Wrong!

2. Who invented the laws of motion?

Correct! Wrong!

3. In which year the laws of motion invented?

Correct! Wrong!

4. Newton's laws of motion are three physical laws that, together, laid the foundation for

Correct! Wrong!

5. The laws describe the relationship between a body and the forces acting upon it, and its ______ in response to those forces.

Correct! Wrong!

6. In an inertial frame of reference, the vector sum of the forces F on an object is equal to the mass m of that object multiplied by the acceleration a of the object. What is the name of this law of motion?

Correct! Wrong!

7. When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body. What is the name of this law of motion?

Correct! Wrong!

8. In an inertial frame of reference, an object either remains at rest or continues to move at a constant velocity, unless acted upon by a force. - What is the name of this law of motion?

Correct! Wrong!

9. Which of the Laws of motion defines the force qualitatively?

Correct! Wrong!

10. Which of the Laws of motion offers a quantitative measure of the force?

Correct! Wrong!

11. Which of the Laws of motion asserts that a single isolated force doesn't exist?

Correct! Wrong!

12. A mass at rest tends to remain at rest; a mass moving at a constant velocity tends to keep moving at that velocity, unless acted upon by an outside force. - What is this law called?

Correct! Wrong!

13. The simplified form of he laws of conservation of momentum, energy, and angular momentum states that "Momentum, energy and angular momentum cannot be created or destroyed." True/ False?

Correct! Wrong!

14. Which law states that all forces between two objects exist in equal magnitude and opposite direction?

Correct! Wrong!

15. Which law states that the rate of change of momentum of a body is directly proportional to the force applied, and this change in momentum takes place in the direction of the applied force?

Correct! Wrong!

16. Which law states that, if the net force (the vector sum of all forces acting on an object) is zero, then the velocity of the object is constant. Velocity is a vector quantity which expresses both the object's speed and the direction of its motion; therefore, the statement that the object's velocity is constant is a statement that both its speed and the direction of its motion are constant?

Correct! Wrong!

17. Two-wheeled blocks of the same kind are at rest on the top of a smooth surface of a table. They are tied with a thread with each other. A compressed spring is placed between the two blocks. When the thread is cut the blocks move in the opposite direction---is an example of which law of motion?

Correct! Wrong!

18. The ball bounces back on hitting the ground. A ball strikes the ground with certain force (Action) and the ground pushes back the ball with equal force(Reaction)---is an example of which law of motion?

Correct! Wrong!

19. If we attach a spring balance to the hook on the wall and its hook is engaged with a hook of another spring balance and apply a pull on the second spring balance that both of the spring balance show the same reading but in opposite direction ---is an example of which law of motion?

Correct! Wrong!

20. The three laws of motion were first compiled by Isaac Newton in his

Correct! Wrong!

21. The flying of a rocket ---is an example of which law of motion?

Correct! Wrong!

22. Drying of Cloths By Shaking is an example of which law of motion?

Correct! Wrong!

23, A gun recoils when a shot is fired from it. Initially both the bullet and gun are at rest, thus the total momentum of the system is constant. When a shot is fired, the bullet moves forward pushing the gun backward---is an example of which law of motion?

Correct! Wrong!

24. A person sitting in a car tries to move the car by applying force to its walls but is unable to move the car - is an example of which law of motion?

Correct! Wrong!

25. Winnowing of Grains is an example of which law of motion?

Correct! Wrong!

26. Carpenter works with wood and nails. To drive nails in wood, less force is required. Thus low inertia of hammer is recommended that implies which law of motion?

Correct! Wrong!

27. A blacksmith works with iron, steel. To change the shape of iron or steel, large force is required. Thus high inertia of hammer is recommended that implies the______ law of motion

Correct! Wrong!

28. When a bus is moving (especially with a high speed) on the road suddenly stops or suddenly changes its direction, the luggage on the top due to inertia of motion and direction continues to remain in the motion or in the same direction of motion. As a result, the luggage may get thrown out from the bus roof ---is an example of which law of motion?

Correct! Wrong!

29. If the car engine is switched off or brakes are applied to stop a car, the car does not stop at once. Sometimes a driver has to apply emergency brakes ---is an example of which law of motion?

Correct! Wrong!

30. Let us sit on a chair in front of a wall and push the wall with our legs. We will find that the chair is pushed backward. When we are pushing the wall we are applying action force, now the wall will put equal and opposite reaction on us and the chair is pushed backward-- is an example of which law of motion?

Correct! Wrong!

31. When the mass of a body is constant, then its acceleration is directly proportional to the force acting on it. When the force acting on a body is constant, then its acceleration is inversely proportional to the mass of the body - True/ False

Correct! Wrong!

32. Newton used the third law to derive the law of

Correct! Wrong!

33. A stationary object will only move if there is an unbalanced force acting on it. True/ False

Correct! Wrong!

34. Since mass is scalar and velocity is a vector, momentum is a vector quantity whose direction is the same as that of _______.

Correct! Wrong!

35. A moving object will only change speed or direction if there is an ___________ force acting on it.

Correct! Wrong!

36. A car has wheels which spin forwards. As the wheels spin forwards, they grip the road and push the road backwards. Since forces result from mutual interactions, the road must also be pushing the wheels forward - an example of which law?

Correct! Wrong!

37. Falling objects have their velocity changed downward at the rate of _________ each second on earth.

Correct! Wrong!

38. For objects thrown upward, gravitational acceleration is still _____ downward.

Correct! Wrong!

40. If you slide a hockey puck on ice, eventually it will stop, because of friction on the ice. It will also stop if it hits something, like a player’s stick or a goalpost - it is an example of

Correct! Wrong!

40. When air rushes out of a balloon, the opposite reaction is that the balloon flies up is an example of

Correct! Wrong!

41. If you kicked a ball in space, it would keep going forever, because there is no gravity, friction or air resistance going against it. It will only stop going in one direction if it hits something like a meteorite or reaches the gravity field of another planet-- is an example of which law?

Correct! Wrong!

42. The second law of motion states that acceleration is produced when an unbalanced force acts on an object (mass). The more mass the object has the more net force has to be used to move it-- is an example of

Correct! Wrong!

43. When you jump off a small rowing boat into water, you will push yourself forward towards the water. The same force you used to push forward will make the boat move backwards is an example of

Correct! Wrong!

44. It is easier to push an empty shopping cart than a full one, because the full shopping cart has more mass than the empty one. This means that more force is required to push the full shopping cart -- is an example of which law?

Correct! Wrong!

45. When you dive off of a diving board, you push down on the springboard. The board springs back and forces you into the air. It is an application of the

Correct! Wrong!

46. If you use the same force to push a truck and push a car, the car will have more acceleration than the truck, because the car has less mass. It is an application of

Correct! Wrong!

47. If you are driving in your car at a very high speed and hit something, like a brick wall or a tree, the car will come to an instant stop, but you will keep moving forward. This is why cars have airbags, to protect you from smashing into the windscreen because of the

Correct! Wrong!

48. First law of motion is also called

Correct! Wrong!

49. F = ma is the equation of which law of motion?

Correct! Wrong!

50. When a boy jumps from the boat to the bank. The boat moves in the direction opposite to jump. In order to jump out of the boat, he has to push the ground (surface of the boat) with greater force (action). Now the boat is in water, thus it is representing the non-rigid surface. Thus the boat moves backward under the action of pushing force, which is an example of which law of motion?

Correct! Wrong!

51. While hammering a nail. a force is experienced on the hand holding the hammer. When a nail is hammered a force is applied to it (action) due to which the nail applies equal and opposite reaction on the hammer reflects the _____law

Correct! Wrong!

52. When a vehicle takes a sudden turn towards the left, the person seated inside the vehicle is pushed towards the right is the example of

Correct! Wrong!

53. When a stationary bus starts moving passengers in the bus get reclined back similarly when bus moving with uniform velocity stops suddenly passengers move forward is an example of

Correct! Wrong!

54. The second part of the first law helps us in defining the

Correct! Wrong!

55. While swimming, the swimmer pushes the water backward with his hands. The action of pushing water backward gives rise to a reaction in the opposite direction which results in the swimmer moving forward, is an example of

Correct! Wrong!

56. The first part of the first law of motion is giving us the concept of

Correct! Wrong!

57. Every material body continues to remain in its state of rest or state of uniform motion in a straight line unless acted upon by an external unbalanced force to change the state of motion. This law is also called as

Correct! Wrong!

58. A coin is placed on a smooth card which serves as a lid on a glass. When the card is pulled suddenly in the horizontal direction the coin falls into the glass is an example of

Correct! Wrong!

59. The tendency of a body to continue to move with uniform motion in a linear direction is called

Correct! Wrong!

60. The tendency of the body to oppose the change of state of rest or state of uniform motion is called

Correct! Wrong!

61. If no unbalanced force acts on a body then the body at rest remains at rest. This inertia is sometimes referred to as the

Correct! Wrong!

62. The inertia of a body depends on the ______ of the body.

Correct! Wrong!

63. This external physical quantity which is required to change the state of motion of a body is called

Correct! Wrong!

64. Mass is a measure of inertia of a body. True/ False

Correct! Wrong!

65. A cyclist riding along a level road does not come to rest immediately after he stops pedaling is an example of

Correct! Wrong!

66. When moving train collides with a stationary one, the former experiences a reverse motion is an example of the

Correct! Wrong!

67. In case of inertia, if a body is at rest, then the net force acting on the body is_____.

Correct! Wrong!

68. In case of inertia, if the net force acting on a body is zero, then the body must be at rest or uniform motion in a _____.

Correct! Wrong!

69. A person falling from a certain height on a hard surface gets hurt more seriously than when he falls on a soft surface is an example of which law of motion?

Correct! Wrong!

70. When a bus makes a turn around a corner, the passengers have to hold on to some support to prevent themselves from swaying to hold some support would get thrown in that direction.

Correct! Wrong!

71. According to Law of inertia, if a body is changing direction, then the net force acting on the body is _______.

Correct! Wrong!

72. When a passenger jumps out of a moving train he falls down due to the Inertia of Motion. To avoid this he has to run in the __________ direction till his velocity is reduced to zero.

Correct! Wrong!

73. When a hanging carpet is beaten with a stick, the dust particles start coming out of it. When a carpet is beaten by stick the carpet is set into motion. But due to inertia, the dust particles remain at rest. Thus they get separated from the carpet. What law is applied here?

Correct! Wrong!

74. On striking the coin at the bottom of a pile of carom coins with a striker, this coin only moves away, while the rest of the pile remains at the original position because of

Correct! Wrong!

75. A ball thrown vertically upward by a person in a moving train comes back to his hand. The reason is that the moment the ball was thrown, the ball was in motion along with the person and the train due to the inertia of _____________.

Correct! Wrong!

76. If a body is neither at rest nor in uniform motion, then the net force acting on the body is

Correct! Wrong!

77. When the local train starts or stops suddenly, sliding doors of some compartments may open or close due to the Law of Inertia of

Correct! Wrong!

78. If a body is moving in uniform motion in a straight line, then the net force acting on the body is zero in the law of

Correct! Wrong!

79. Athletes often fail to stop themselves before fault line because of the _________ while the upper part of the athlete’s body continues to move in the forward direction while the lower part comes to halt.

Correct! Wrong!

80. Athletes run before taking a long jump in order to increase his speed, and thereby his inertia of motion. The increased inertia of motion enables him to jump a longer distance is an example of

Correct! Wrong!

81. When a bullet is fired at a glass window, a hole is formed in it because only that part of the glass moves with the bullet, where the bullet hits the glass. The remaining part due to the inertia remains in its position. Thus bullet is able to form a hole in the glass window due to the inertia of window pane.--- this is an application of

Correct! Wrong!

82. On shaking or giving jerks to the branches of a tree, the fruits fall down. When branches are shaken in one direction, the fruits and leaves due to inertia remain at the original position due to

Correct! Wrong!

83. If the net force acting on a body is ______, then the body is neither at rest nor in uniform motion in a straight line.

Correct! Wrong!

84. A magician snatches a table cloth from under a full set of tableware. When the table cloth is pulled it is set into motion, but the tableware due to _____ remains on the table.

Correct! Wrong!

85. The laws of motion are the study of

Correct! Wrong!

86. Newton wasn't expected to survive as a child. He was born quite premature: an estimated 11 to 15 weeks early. True/ False

Correct! Wrong!

87. Newton was a stutterer, but it puts him in good company. Other people who habitually tripped over their tongues included Aristotle, Moses, Winston Churchill, and Charles Darwin.

Correct! Wrong!

88. Despite being born on January 4, 1643 Newton was born on Christmas Day.

Correct! Wrong!

89. Newton, born in England was a Member of Parliament

Correct! Wrong!

90. His dog set Newton's laboratory on fire, ruining 20 years of research.

Correct! Wrong!

055-science

Other recommended Quizzes

Other Recommended Quizzes

Tags

multiple choice questions on laws of motion with answers pdf
force and motion multiple choice questions with answers
newton’s third law
newton’s laws
newton’s laws of motion
newton’s 3rd law
newton’s first law of motion
newton’s third law of motion
kepler’s third law
law of inertia
newton’s 3 laws
for every action, there is an equal and opposite reaction
newton’s second law example
newton’s first law example
newton’s three laws
second law of motion
kepler’s second law
first law of motion
newton’s third law examples
newton’s 3rd law of motion
3 laws of motion
third law of motion
kepler’s first law
newton’s 3 laws of motion
2nd law of motion
newton’s three laws of motion
kepler’s 3rd law
every action has an equal and opposite reaction
three laws of motion
3rd law of motion
newton’s second law formula
every action has a reaction
1st law of motion
newton’s first law of motion examples
newton’s third law of motion examples
newton’s laws of motion examples
newton’s second law of motion examples
isaac newton laws
law of acceleration
kepler’s 2nd law
newton’s 3rd law example
newton’s 2nd law example
for every action there is a reaction
newton’s third law definition
newton’s laws of physics
newton’s third law formula
examples of newton’s 3 law of motion
newton’s 1 law
law of action and reaction
newton’s 1st law examples
kepler’s 1st law
isaac newton laws of motion
example of law of inertia
newton’s laws of motion for kids
third law of motion examples
newton second
second law of motion examples
action and reaction forces
action reaction forces
newton’s second law for kids
first law of motion examples
kepler’s third law of planetary motion
newton’s first law of motion definition
newton’s laws examples
third law
the three laws of motion
state newton’s first law of motion
newton’s third law of motion definition
law of inertia definition
2nd law of motion examples
newton’s 2nd law definition
isaac newton 3 laws of motion
3rd law of motion examples
kepler’s second law of planetary motion
newton’s 2nd law formula
newton’s 3rd law definition
state newton’s third law of motion
newton’s second law of motion formula
kepler’s first law of planetary motion
law of action reaction
newton’s laws for kids
to every action there is an equal and opposite reaction
kepler’s third law formula
newton’s 3rd law of motion example
3rd law
newton’s equations of motion
example of law of acceleration
1st law of motion examples
newton’s 2nd law of motion examples
examples of newton’s 2 law of motion
according to newton’s second law of motion
newton’s 1 law of motion
newton’s 2st law
for every action
1 law of motion
newton’s second law for rotation
the first law of motion
law of equal areas
the 3 laws of motion
the second law of motion

Leave a Reply

Your email address will not be published. Required fields are marked *