Physics Questions

Q:

The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called ___

A) inertia B) momentum
C) energy D) force
 
Answer & Explanation Answer: A) inertia

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Q:

If speed of rotation of the earth increases, the weight of the body

A) decreases B)
C) D)
 
Answer & Explanation Answer: A) decreases

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Q:

Fuse wire is made of an alloy of

A) Tin and Lead B) Tin and Copper
C) Lead and Copper D) Copper and Silver
 
Answer & Explanation Answer: A) Tin and Lead

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Q:

Sound can not travel in which of the following medium?

A) Solid B) Liquid
C) Gas D) Vacuum
 
Answer & Explanation Answer: D) Vacuum

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Q:

The laws which govern the motion of planets are called ___________________.

A) Newton's Laws B) Kepler's Laws
C) Avogadro's laws D) De Morgan's Laws
 
Answer & Explanation Answer: B) Kepler's Laws

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Q:

For which one of the following, 'Diodes' are generally used for?

A) Rectification B) Amplification
C) Modulation D) Filtration
 
Answer & Explanation Answer: A) Rectification

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Q:

Why boiling point of water decreases at high altitudes?

A) Because of high temperature B) Because of low atmospheric pressure
C) Because of low temperature D) Because of high atmospheric pressure
 
Answer & Explanation Answer: B) Because of low atmospheric pressure

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Q:

Electric Motor converts _____ energy to mechanical energy

A) sound B) mechanical
C) chemical D) electrical
 
Answer & Explanation Answer: D) electrical

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