Class 9 Physics MCQs - Chapter 9

Work and Energy MCQ (Multiple Choice Questions) PDF - 14

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Work and Energy Questions & Answers PDF Download: MCQ Quiz 14

MCQ 66: The ratio of required output to input is called

A) efficiency

B) deficiency

C) loss of energy

D) gain of energy

MCQ 67: When a body vibrates, it produces

A) sound

B) water

C) heat

D) electricity

MCQ 68: 1 joule is equal to

A) 1 N × 1 m

B) 1 N + 1 m

C) 1 N - 1 m

D) 1 G9 × 1 m

MCQ 69: In nuclear power plants, we get energy as a result of

A) molecular reaction

B) potential reaction

C) nuclear reaction

D) fission reaction

MCQ 70: The potential energy is given by

A) w * h

B) f * s

C) mv

D) ma

Class 9 Physics Mock Tests

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Work and Energy MCQs

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