# 9th Class Physics Chapter 6 MCQs 2024

Students if you are looking for the 9th Class Physics Chapter 6 Work And Energy MCQs Notes if yes? then you visit the right place where you can easily find Physics Chapter No. 6 most important mcqs questions with answers.

Students You know that these Chapter 6 Work And Energy MCQs Notes of Physics are helpful so don’t ignore them to read and find more mcqs from your Physics book of the 9th class.

## Class 9 Physics Chapter 6 MCQs Notes

1: The work done will be zero when the angle between the force and the distance is

(a) 45°
(b) 60°
(c) 90°
(d) 180°

2: If the direction of motion of the force is perpendicular to the direction of motion of the body, then the work done will be

(a) Maximum
(b) Minimum
(c) zero
(d) None of the above

3: If the velocity of a body becomes double, then its kinetic energy will

(a) remain the same
(b) become double
(c) become four times
(d) become half

4: The work done in lifting a brick of mass 2 kg through a height of 5 m above ground will be

(a) 2.5 J
(b) 10 J
(c) 50 J
(d) 100 J

5: The kinetic energy of a body of mass 2 kg is 25 J. Its speed is

(a) 5 ms
(b) 12.5 ms
(c) 25 ms
(d) 50 ms

6: Which one of the following converts light energy into electrical energy?

(a) electric bulb
(b) electric generator
(c) Photocell
(d) Electric cell

7: When a body is lifted through a height h, the work done on it appears in the form of its:

(a) kinetic energy
(b) potential energy
(c) elastic potential energy
(d) geothermal energy

8: The energy stored in coal is

(a) heat energy
(b) kinetic energy
(c) chemical energy
(d) nuclear energy

9: The energy stored in a dam is

(a) electric energy
(b) potential energy
(c) kinetic energy
(d) thermal energy

10: In Einstein’s mass-energy equation, c is the

(a) speed of sound
(b) speed of light
(c) speed of electron
(d) speed of Earth

11: The rate of doing work is called

(a) energy
(b) torque
(c) power
(d) momentum