The product of force and displacement in the direction of force is MCQ with Answer and Explanation

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The product of force and displacement in the direction of force is

A. Energy

B. Momentum

C. Power

D. Work

Answer: Option D

Solution (By JKSSB Mock Tests)

Work = F s cosθ. Energy is capacity to do work. Power is rate of work. Momentum = m v. Work and energy have same unit joule.

This question belongs to: Science Physics

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Practice More Physics Questions

Question #1

The frequency of AC mains in India is 50 Hz. The time period is

A. 0.02 s

B. 0.5 s

C. 50 s

D. 0.2 s

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Correct Answer: Option A

Explanation:
T = 1/f = 1/50 = 0.02 s.

This question belongs to: Science Physics

Question #2

The frequency of a source of sound is 500 Hz. The number of vibrations it makes in 2 minutes is

A. 1000

B. 60000

C. 500

D. 30000

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Correct Answer: Option B

Explanation:
Frequency = vibrations per second. 500 vibrations per second. In 2 min = 120 s, total vibrations = 500 × 120 = 60,000. Simple multiplication.

This question belongs to: Science Physics

Question #3

The loudness of sound depends on

A. Frequency

B. Amplitude

C. Speed

D. Wavelength

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Correct Answer: Option B

Explanation:
Loudness correlates with intensity, which is proportional to square of amplitude. Frequency determines pitch. Larger amplitude → louder sound. Measured in decibels.

This question belongs to: Science Physics

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