Quiz on Physics Set 22

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Note: You can select only one option out of four option of each question.

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Quiz on Physics Set 22 :

Question 1 :

Every hot object emits ________ 
A. X–rays
B. Visible light
C. Infrared rays
D. Ultraviolet rays

Correct Ans: Option C

Question 2 :

Which metal is the best conductor of heat?
A. Silver
B. Gold
C. Copper
D. All of the above

Correct Ans: Option C

Question 3 :

When hot liquid is poured into a thick glass tumbler, it cracks because glass :
A. Is a bad conductor of heat so only inner surface expands
B. Has high temperature coefficient of expansion
C. Has a very low specific heat
D. Has low temperature coefficient of expansion

Correct Ans: Option A

Question 4 :

Mud houses are cooler in summers and warmer in winters as compared to brick houses because
A. Mud is a good conductor
B. Mud is a bad conductor
C. Mud is a poor insulator
D. Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters

Correct Ans: Option B

Question 5 :

During hot weather, the fan produces a feeling of comfort. This is because
A. Fan supplies cool air
B. Fan cools the air
C. Our perspiration eva-porates rapidly
D. Conductivity of air increases

Correct Ans: Option C

Question 6 :

The flow of thermal energy is called
A. Heat
B. Current
C. Voltage
D. Potential

Correct Ans: Option A

Question 7 :

On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because :
A. Metals have higher thermal capacity than plastics
B. Plastics have a lower density than metals
C. Metals are good conductors of heat
D. Plastics have a higher thermal conductivity than metals

Correct Ans: Option C

Question 8 :

Which of the following is an insulator?
A. Mercury
B. Carbon
C. Germanium
D. Glass

Correct Ans: Option D

Question 9 :

'Therm' is the unit of
A. Power
B. Heat
C. Light
D. Distance

Correct Ans: Option B

Question 10 :

Heat flows as a result of difference of ________
A. Temperature
B. Density
C. Mass
D. Volume

Correct Ans: Option A

Quiz Summary


Here the correct answers of every question in this quiz.

Q.1 [C],     Q.2 [C],     Q.3 [A],     Q.4 [B],     Q.5 [C],     Q.6 [A],     Q.7 [C],     Q.8 [D],     Q.9 [B],     Q.10 [A],    


Total Questions: 10
Your score:
Subject: Physics
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