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Physics Chapter 6 MCQs Notes
| Post Topic | Solved MCQs |
| Book Code | Physics |
| Class | 9th Class |
| Chapter/Full | Chapter 6 |
| Board | Punjab Board |
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
9th Class Physics Chapter 6 MCQs PDF Download
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