Effects of Heat NDA Questions

NDA Physics

Effects of Heat MCQ Questions


7.
When ice melts into water, the process is called
A.
Sublimation
B.
Fusion
C.
Vaporizatio
D.
Condensation
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ANSWER :
B. Fusion
8.
The phase change from liquid to gas is known as
A.
Evaporation
B.
Sublimation
C.
Vaporization
D.
Boiling
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ANSWER :
C. Vaporization
9.
Which of the following describes the heat of fusion?
A.
Heat required to melt 1 gram of a solid
B.
Heat required to vaporize 1 gram of a liquid
C.
Heat required to raise 1 gram of a substance by 1 degree Celsius
D.
Heat required to cool 1 gram of a gas by 1 degree Celsius
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ANSWER :
A. Heat required to melt 1 gram of a solid
10.
When a liquid is heated, its molecules move
A.
Faster
B.
Slower
C.
In circular motions
D.
Randomly
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ANSWER :
A. Faster
11.
The total heat energy in an object depends on its
A.
Volume and specific heat capacity
B.
Mass and temperature
C.
Density and pressure
D.
Temperature and density
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ANSWER :
B. Mass and temperature
12.
The transfer of heat through a vacuum occurs by
A.
Radiation
B.
Convection
C.
Conduction
D.
Absorption
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ANSWER :
A. Radiation