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Physics Past Questions and Answers

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Physics Questions

Question 221:

The area under a force-distance graph represents

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A Acceleration
B Velocity
C Power
D Work
E Momentum

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Question 222:

A hot metal ball is suspended in the open air. As it cools it loses heat by

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A Conduction only
B Convection only
C Radiation only
D Conduction and convection
E Convection and evaporation

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Question 223:

The range of accommodation of a normal human eye is

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A 0m to 0.1m
B 0m to 0.25m
C 0.10m to 0.25m
D 0.10m to infinity
E 0.25m to infinity

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Question 224:

A hydrometer is an instrument for measuring the

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A Depth of water in a vessel
B Relative density of a liquid by the method of flotation
C Relative dendity of a liquid by finding the apparent loss in weight
D Relative humidity of the air
E Atmospheric pressure when the air is humid

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Question 225:

The point beyond which a stretched spring does not return to its original length is called the

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A Breaking point
B Elastic limit
C Spring constant
D Elasticity point
E Release point

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