# 50+ Kinetic Energy MCQs and Answers

Kinetic Energy MCQ and Answers are must for the aspirants who are preparing for various competitive examination. It covers the concept of Work, Energy and Power which is very important for any competitive exams. This Law of Work, Energy and Power topic is given most importance in various competitive exams like JEE Main, JEE Advanced, NEET, AIIMS etc.

## Kinetic Energy MCQ and Answer

a) K

b) 3K

c) 4K

d) 9K/4

#### 2. Which of the following is correct?

a) The kinetic energy of a system can be changed without changing the momentum

b) The kinetic energy of a system cannot be changed without changing the momentum

c) The momentum of a system cannot be changed without changing its kinetic energy

d) A system cannot have energy without having momentum

a) 0.45 J

b) 4.5 J

c) 0.9 J

d) 0 J

a) 5 m/s

b) 10 m/s

c) 15 m/s

d) 20 m/s

a) 10m J

b) 100m J

c) 1000m J

d) 10000m J

a) 5600 J

b) 10200 J

c) 11200 J

d) 12000 J

a) 25 %

b) 50%

c) 75%

d) 100%

a) 2:5

b) 4:25

c) 25:4

d) 5:2

a) 200 J

b) 200 kgm2s-1

c) 200 kgm-1s-2

d) 200 kgm-1s-1

a) 0.5J

b) 5J

c) 10J

d) 15J

a) 0.06J

b) 0.04J

c) 0.03J

d) 0.004J

#### 12. Which of the following cannot be called energy?

a) Momentum

b) Stress energy

c) Chemical potential

d) Strain energy

#### 13. If mass (m) is doubled and velocity (v) is halved then _____

a) Kinetic energy decreases by half

b) Potential decreases by half

c) Momentum decreases by half

d) Potential and kinetic energy remains unchanged