If momentum is increased by two times, kinetic energy (K.E) increases by
Correct answer: C. four times
- A. two times
- B. 3 times
- C. four times
- D. remains
Explanation
Kinetic energy is directly proportional to the square of momentum. If momentum is increased by two times, the kinetic energy will increase by a factor of 2^2=4.Incorrect Options Explanation:(a) two times: Kinetic energy increases with the square of the momentum, not directly with it.(b) 3 times: This is not accurate according to the relationship between kinetic energy and momentum.(d) remains: Kinetic energy is directly related to momentum, so if momentum increases, kinetic energy also increases.
Last updated
About Force and Motion
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.
Practise Force and Motion
1,416 free Force and Motion MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physics questions like this
Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
(1, 1, 1) . (2, 2, 2)
1st law of motion gives the definition of:
2nd law of motion measures which quantity?
7.0 kg bowling ball experience a net force of 5.0N. What will be its acceleration?
A 0.2 kg rubber ball is dropped from the window of a building. It strikes the sidewalk below at 30m/s and rebounds up at 20m/s. The impulse on the ball during the collision is: