Multiple Choice Questions (JEE Main)

46. Newton's first law of motion is also known as the law of:
- a) Force and acceleration
- b) Inertia
- c) Conservation of momentum
- d) Action and reaction
Answer: b) Inertia
47. The momentum of an object is given by the product of its:
- a) Mass and velocity
- b) Mass and acceleration
- c) Force and time
- d) Mass and displacement
Answer: a) Mass and velocity
48. Which of the following is the correct statement of Newton's second law of motion?
- a) F = ma
- b) F = m/v
- c) F = ma²
- d) F = mv²
Answer: a) F = ma
49. Impulse is defined as the change in:
- a) Velocity
- b) Acceleration
- c) Force
- d) Momentum
Answer: d) Momentum
50. Newton's third law of motion states that:
- a) The rate of change of momentum is proportional to the applied force
- b) Every action has an equal and opposite reaction
- c) The net force on an object is equal to the product of its mass and acceleration
- d) An object at rest will remain at rest unless acted upon by an external force
Answer: b) Every action has an equal and opposite reaction
51. The law of conservation of linear momentum holds true when:
- a) No external force acts on the system
- b) External forces are applied to the system
- c) The system is in equilibrium
- d) The system is not moving
Answer: a) No external force acts on the system
52. If two objects collide and no external force acts on them, their total momentum will:
- a) Increase
- b) Decrease
- c) Remain constant
- d) Vary depending on the type of collision
Answer: c) Remain constant
53. The frictional force that opposes the motion of an object at rest is called:
- a) Static friction
- b) Kinetic friction
- c) Rolling friction
- d) Sliding friction
Answer: a) Static friction
54. The force of friction depends on:
- a) The nature of the surface
- b) The speed of the object
- c) The weight of the object
- d) Both a) and c)
Answer: d) Both a) and c)
55. The coefficient of kinetic friction is typically:
- a) Greater than the coefficient of static friction
- b) Equal to the coefficient of static friction
- c) Less than the coefficient of static friction
- d) Independent of the surface area
Answer: c) Less than the coefficient of static friction
56. In rolling friction, the frictional force is:
- a) Zero
- b) Greater than static friction
- c) Less than static friction
- d) Equal to kinetic friction
Answer: c) Less than static friction
57. The centripetal force required for an object moving in a circular path is:
- a) Always directed towards the center of the circle
- b) Always directed away from the center of the circle
- c) Tangential to the circle
- d) Equal to the velocity of the object
Answer: a) Always directed towards the center of the circle
58. When a vehicle moves around a circular track at constant speed, the centripetal force is provided by:
- a) The weight of the vehicle
- b) Friction between the tires and the road
- c) Tension in the vehicle's suspension system
- d) Air resistance
Answer: b) Friction between the tires and the road
59. A vehicle on a banked curve requires friction to:
- a) Keep the car from sliding outward
- b) Reduce the effect of gravity
- c) Maintain a constant speed
- d) Counteract the centripetal force
Answer: a) Keep the car from sliding outward
60. The frictional force between a car and a banked curve helps in:
- a) Providing the necessary centripetal force for circular motion
- b) Increasing the normal force
- c) Reducing the weight of the car
- d) Increasing the speed of the car
Answer: a) Providing the necessary centripetal force for circular motion

<< Previous Page l Next Page >>

Note/Caution: studentsbizz.com does not promise a job or an interview in exchange for money. Fraudsters may ask you to pay under the pretext of a registration fee or refundable fee, but please be aware that legitimate employers will not require such payments.

Multiple Choice Questions (JEE Main)

Join in Our Groups