Get ready for better learning with NCERT & CBSE Laws of Motion Worksheet Class 11 Physics. No need to roam anywhere we will provide you with all the study content you need. Let’s study smartly. PDF view is also there for your suitability.
1. Is any external force required to keep a body in uniform motion ?
2. State Aristotelian law of motion. What is flaw in this law ?
3. State Galileo’s law of inertia.
4. Define the term inertia.
5. What gives the measure of inertia ?
6. Define inertial mass of a body.
7. Name the scientist who first gave the laws of motion.
8. State Newton’s first law of motion.
[Delhi 03C ; Central Schools 07]
9. A piece of cork is floating on water. What is the net force acting on it ?
10. How does Newton’s first law of motion define force ?
11. Which law of motion gives the measure of force ?
12. Name the scientist who first introduced the concept of momentum.
13. Write the dimensions of momentum.
14. What are the SI and CGS units of momentum ?
15. What is the ratio of SI to the CGS units of momentum ?
16. State Newton’s Second law of motion.
[Delhi 03 ; Central Schools 07]
17. Define one newton force. [Central Schools 13]
18. Define one dyne.
19. Write the relation between newton and dyne.
20. Is it correct to say that the second law of motion is the real law of motion ? [Delhi 15]
21. Write the second law of motion in vector form.
22. Show that if the force acting on a particle is zero, its momentum will remain unchanged. [BIT Ranchi 97]
23. The two ends of a spring balance are pulled each by a force of 10 kg wt. What will be the reading of the spring balance ?
24. A person is standing on a weighing machine placed near a door. What would be the effect on the reading of the machine if a person (i) presses the edge of the door upward (ii) pulls downwards ?
25. What are the conditions for maximum and minimum pull of a lift on a supporting cable?
26. A lift is going up with an acceleration 2 g. A man is inside the lift and his mass is m What will be the reaction of the floor on the man ?
27. Which of Newton’s laws of motion is involved in rocket propulsion ?
28. A person sitting in the compartment of a train moving with uniform speed throws a ball in the upward direction (i) What path of the ball will appear to him ? (π) What to a person standing outside ?
29. State the principle of conservation of linear momentum. [Kerala 01; Delhi 08]
30. Will the momentum remain conserved if some external force acts on the system ?
31. What is the principle of working of a rocket ?
[Delhi 10]
Laws of Motion Worksheet Class 11 Physics
32. Vehicles stop on applying brakes. Does this phenomenon violate the principle of conservation of momentum ?
33. A bomb explodes in mid-air into two equal fragments. What is the relation between the direction of motion of the two fragments ?
34. The total momentum of the universe remains constant. Is this statement true ?
35. Can a rocket operate in free space ?
36. Is impulse a scalar or vector quantity ? Write its SI unit.
37. The dimensional formula of impulse is MLT-1. Name another physical quantity having the same dimensions. [Delhi 96]
38. A bus weighing 900 kg is at rest on the bus stand. What is the linear momentum of the bus ?
[Himachal 02]
39. What is dry friction ?
40. What is wet friction ?
41. What is normal reaction ?
42. Define limiting friction. [Himachal 09]
43. Define coefficient of limiting friction.
44. What is the unit of coefficient of limiting friction. [Himachal 01]
45. Which is greater μs. or μk ?
46. Write the relation between coefficient of friction and angle of friction ?
47. What is the relation between angle of friction and angle of repose ?
48. Is rolling friction more than sliding friction ?
49. On what factors does the coefficient of friction depend ?
50. Which is greatest out of static friction, limiting friction and kinetic friction ?
51. What is the angle between frictional force and instantaneous velocity of a body moving over a rough surface ?
52. A body is just sliding down an inclined plane due to its own weight. What is the relation between angle of inclination and angle of repose ?
53. A body slides down an inclined plane having friction. Indicate the directions of the frictional force and the reaction of the plane on the body. [Manipur 99]
54. Give an example of the use of friction.
55. Does the force of friction depend on the area of contact ?
56. What is the angle of friction between two surfaces in contact if the coefficient of friction is 1/√3 ?
[Himachal 07C]
57. Define angle of friction.
[Himachal 01C ; Central Schools 07]
58. It is easier to roll a barrel than to pull it along the road. Why ? [Himachal 07]
59. Why are rockets given conical shape ?
60. Arrange μ , μ k and μ r in ascending order.
61. A body is moving along a circular path such that its speed is always constant. Should there be a force acting on the body ? [Himachal 02]
62. What provides the centripetal force to a satellite revolving around the earth ? [Punjab 91]
63. What furnishes the centripetal force for the electrons to go round the nucleus ?
64. Can a centripetal force produce rotation ?
65. Which is real among the centripetal and centripetal forces ?
66. What provides the centripetal force to a car taking a turn on a level road ? [Himachal 06]
67. Does the angle of banking depend on the mass of the vehicle ?
68. When a body moves in a circular path, which thing experiences a centrifugal force ?
69. A body is travelling with a constant speed on the circumference of a circle. Of the quantities (i) linear velocity (ii) linear acceleration (iii) acceleration towards the centre and (iv) centripetal force, which remains constant ?
70. A circus man starts down an inclined plane on his scooter. At the end of the inclined plane, there is a vertical circular arch. If he is to safely negotiate the arch, what must be his velocity at the end of the plane ?
71. How many newtons make one kg wt. ?
[Central Schools 04, 12]
72 Define impulse. [Central Schools 05 ; Himachal 09C]
73. What is difference between mN and nm ?
[Himachal 03]
74. From which Newton’s laws of motion, the definition of force comes ? [Himachal 03]
75. Give and state the SI unit of force. [Himachal 03]
76. What is friction ? [Himachal 04, 09]
77. What is the unit of coefficient of limiting friction ?
[Himachal 01]
78. What happens to coefficient of friction, when weight of body is doubled ? [Chandigarh 03]
79. What is the need of banking a circular road ?
[Delhi 09]
Or
How does banking of roads reduce wear and tear of the tyres ? [Delhi 17]
80. Three forces start acting simultaneously on a particle moving with a velocity x). These forces are represented in magnitude and direction by three sides of a triangle taken in the same order. What now will be the velocity of the particle ? [AIEEE 03]
81. Action and reaction forces do not balance each other. Why ? [Himachal 06 ; Delhi 12]
Or
Action and reaction are equal and opposite. Why cannot they cancel each other ?
[Central Schools 12]
82. If the net external force acting on a body is zero, then the body at rest continues to remain at rest and a body in motion continues to move with uniform motion. What is the name given to this property of the body ? [Delhi 08]
83. A tennis ball of mass ‘m’ strikes the massive wall with vel ‘v’ and traces the same path. Calculate the change in momentum. [Central Schools 08, 09]
84. What will be the maximum velocity with which a vehicle can negotatie a him of radius r safely, when the coefficient of friction between the tyres and the road is μ ? [Himachal 07]
85. Athlete runs a certain distance before long jump. Name the law that explains it. [Central Schools 07]
86. Two objects of masses 2 kg and 4 kg are having the same magnitude of momentum. Find the ratio of their speeds. [Central Schools 13]
87. Position time graph of a body of mass 1 kg is shown in the figure. Calculate net force acting on a body for the time interval 0 < t < 1 sec. [Delhi 15]
Laws of Motion Worksheet Class 11 Physics