Physics Questions

Q:

The motion of a freely falling body is an example of ______________ accelerated motion.

A) non-uniformly B) uniformly
C) uniquely D) specially
 
Answer & Explanation Answer: B) uniformly

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Q:

The weight of a boy on the surface of the moon is 300 N. The weight of the same boy on the surface of the earth will be

A) 300 N B) 50 N
C) 1800 N D) 5 N
 
Answer & Explanation Answer: C) 1800 N

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Q:

Formula for distance is

A) speed x time B) time / speed
C) speed x acceleration D) velocity / speed
 
Answer & Explanation Answer: A) speed x time

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Q:

As a sailor jumps in the forward direction, the boat moves backwards. This example illustrates Newton's :

A) Second Law of Motion B) First and Second Law of Motion
C) Third Law of Motion D) First Law of Motion
 
Answer & Explanation Answer: C) Third Law of Motion

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Q:

Propagation of sound can be visualised as propagation of ____________ variations in the medium

A) elasticity B) viscosity
C) density D) porosity
 
Answer & Explanation Answer: C) density

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Q:

A force of 200 N displaces a body by 4 m, calculate the work done (in J).

A) 40 B) 500
C) 80 D) 800
 
Answer & Explanation Answer: D) 800

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Q:

In a streamline flow, ________ at every point in the fluid remains same.

A) force B) pressure
C) pressure D) speed
 
Answer & Explanation Answer: C) pressure

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Q:

One nanometer is equal to _____________ meters.

A) 10 raised to the power (­3) B) 10 raised to the power (­-6)
C) 10 raised to the power (­-9) D) 10 raised to the power (­-12)
 
Answer & Explanation Answer: C) 10 raised to the power (­-9)

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