Free Force and Motion MCQs with Answers
1,416 Force and Motion MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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- A. 4:1
- B. 1:2
- C. 0:1
- D. 1:6
Explanation: The kinetic energy and momentum are related as; K.E=P2/2m As mass and momentum are directly related, they will be related as;
Correct answer: 1:2- A. m2
- B. m1
- C. Both m1 and m2
- D. Not enough information is available
Explanation: Interior refers to volume, which cannot be determined by using the masses and velocities of the given objects.
Correct answer: Not enough information is available1323. A cricketer hits 4 runs, when middle of the bat hits the ball. This is an example of Newton's:
- A. 2nd law of motion
- B. 3rd law of motion
- C. 1st law of motion
- D. Law of gravity
Explanation: Newton's third law states that every force has an equal and opposite force Since the force of the ball equals , the force of the racket…
Correct answer: 3rd law of motion- A. Force acting upon it
- B. Acceleration
- C. Velocity
- D. Torque acting upon it
Explanation: A moving object is in equilibrium if it moves with a constant velocity; then its acceleration is zero.
Correct answer: Velocity- A. Centrifugal force
- B. Gravitational force
- C. Coulumbs force
- D. Frictional force
Explanation: An object moving in circular motion around a copper track has centripetal force provided by the force of friction acting upon it.
Correct answer: Frictional force- A. Inertia
- B. Acceleration
- C. Gravitational force
- D. Tension
Explanation: The explanation for this question will be added soon.
Correct answer: Tension- A. Action and reaction have same nature
- B. Action and reaction have same line of action
- C. Action and reaction never act on same body
- D. Action and reaction can cancel each other
Explanation: Either force can be considered the action force or the reaction force. You might think that because action-reaction forces are equal and…
Correct answer: Action and reaction can cancel each other- A. Pseudo force pushes backwards
- B. Pseudo force pushes forwards
- C. Real force pushes backwards
- D. Real force pushes forwards
Explanation: The nonexistent force that is felt pushing one forward when a car breaks only exists within a non-inertial frame of reference.
Correct answer: Pseudo force pushes forwards1329. Centrifugal force is a:
- A. Real force
- B. Friction force
- C. Pseudo force
- D. None of these options is correct
Explanation: The centrifugal force is a pseudo-force because if the centripetal force ceased for an object in circular motion, the centrifugal force…
Correct answer: Pseudo force- A. The resultant force acts towards the centre of the circle
- B. There is no resultant force
- C. The resultant force acts away from the centre of the circle
- D. None of these
Explanation: If a moving object has no forces acting on it, it will continue to move in a straight line at constant velocity.
Correct answer: The resultant force acts towards the centre of the circle- A. Rest frame
- B. Accelerating frame
- C. Non-inertial frame
- D. All of these
Explanation: A rest frame associated to a particle will be inertial if the particle is free, i.e. it does not interact with anything.
Correct answer: Rest frame- A. Rest frame
- B. Accelerating frame
- C. Non-inertial frame
- D. All of these options are correct
Explanation: Both the frames of reference i.e. a rest frame, and a frame moving with a constant velocity can be considered as Inertial Frames of…
Correct answer: Rest frame- A. Galileo theory
- B. Aristotle theory
- C. Einstein's theory
- D. Maxwell's theory
Explanation: Aristotle's Law of Motion: The natural state for an object is to be at rest.
Correct answer: Aristotle theory- A. 120 m
- B. 130 m
- C. 140 m
- D. 180.7 m
- E. 200.3 m
Explanation: The explanation for this question will be added soon.
Correct answer: 120 m- A. 30 degrees
- B. 45 degrees
- C. 80 degrees
- D. 90 degrees
Explanation: The greatest the value of sin of anything can be is 1. This angle will be at 45 degrees.
Correct answer: 45 degrees- A. vx = 0, vy = Constant
- B. vx = Constant, vy = Constant
- C. vx = 0, vy = 0
- D. vx = Constant, vy = 0
Explanation: At the highest point of projectile motion, the vertical velocity is equal to 0 (Vy = 0) and horizontal velocity will be constant (vx =…
Correct answer: vx = Constant, vy = 0- A. 30 degrees
- B. 45 degrees
- C. 60 degrees
- D. 90 degrees
Explanation: The range of a projectile for a given initial velocity is maximum when the angle of projection is 450
Correct answer: 45 degrees- A. 100 and 200
- B. 75° and 150
- C. 450 and 600
- D. 00 and 300
Explanation: 75 degrees and 15 degrees will have the same range for a projectile.
Correct answer: 75° and 150- A. 450
- B. 900
- C. 00
- D. 760
Explanation: If the angle of projection is 76 degrees, the maximum height is equal to the horizontal range.
Correct answer: 760- A. Point of projection
- B. Landing point
- C. Highest point
- D. Just before landing
Explanation: The vertical component of velocity becomes zero at the highest point in the projectile's motion, just before it starts descending
Correct answer: Highest point