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Heat and Thermodynamics - SS2 Physics Past Questions and Answers - page 1

1

Which heat transfer mechanism does not require a medium to transfer heat?

A

Conduction

 

B

Convection

 

C

Radiation

 

D

None of the above

correct option: c
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2

Heat transfer by conduction occurs primarily in which of the following?

A

Solids

 

 

B

Liquids

 

C

Gases

 

D

All of the above

correct option: a
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3

Which heat transfer mechanism involves the transfer of heat through the movement of fluids?

A

Conduction

 

B

Convection

 

C

Radiation

 

D

None of the above

correct option: b
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4

Which of the following is an example of heat transfer by radiation?

A

Touching a hot object

 

B

Heating water on a stove

 

 

C

Feeling the warmth of the sun

 

D

Stirring a pot of soup

correct option: c
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5

Which heat transfer mechanism is responsible for the heating of the Earth's atmosphere?

A

Conduction

 

B

Convection

 

 

C

Radiation

 

D

Both B) and C)

correct option: d
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6

Which material is a good conductor of heat?

A

Wood

 

 

B

Plastic

 

C

Metal

 

D

Rubber

correct option: c
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7

Which heat transfer mechanism is primarily responsible for heat loss in a vacuum flask?

A

Conduction

 

B

Convection

 

C

Radiation

 

D

All of the above

correct option: c
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8

Which of the following is an example of heat transfer by convection?

A

Putting a metal spoon in hot soup

 

B

Holding your hand near a fireplace

 

C

Standing in front of an open oven

 

D

None of the above

correct option: a
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9

Which heat transfer mechanism is most efficient in a solid material?

A

Conduction

 

B

Convection

 

 

C

Radiation

 

D

They are equally efficient

correct option: a
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10

Which heat transfer mechanism is responsible for the cooling effect of a fan?

A

Conduction

 

B

Convection

 

C

Radiation

 

D

Both A) and C)

correct option: b
Users' Answers & Comments
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