Thermal energy II - JSS2 Basic science Past Questions and Answers - page 1

1

What is heat transfer through conduction?

A

Heat transfer through direct contact

B

Heat transfer through radiation

C

Heat transfer through fluid movement

D

Heat transfer through magnetic fields

correct option: a
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2

What causes heat transfer through conduction?

A

Movement of objects

B

Vibration of atoms or molecules

C

Rotation of molecules

D

Expansion of materials

correct option: b
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3

Which of the following is a good conductor of heat?

A

Wood

B

Plastic

C

Copper

D

Rubber

correct option: c
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4

Why do metals conduct heat well?

A

Due to tightly bound electrons

B

Due to high density

C

Due to low melting point

D

Due to low melting point

correct option: d
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5

Which material is a poor conductor of heat?

A

Aluminum

B

Glass

C

Rubber

D

Copper

correct option: c
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6

What property makes a material a good conductor of heat?

A

Tightly bound electrons

B

High density

C

Presence of free electrons

D

Low specific heat capacity

correct option: c
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7

How does heat move through a metal rod when one end is heated?

A

Through fluid movement

B

Through convection

C

Through direct contact

D

Through radiation

correct option: c
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8

Which material feels colder to the touch at room temperature?

A

Plastic

B

Metal

C

Glass

D

Rubber

correct option: a
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9

What is the main mechanism of heat transfer in a wooden spoon when placed in hot soup?

A

Convection

B

Conduction

C

Radiation

D

Advection

correct option: b
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10

What type of heat transfer occurs when you feel the warmth of sunlight on your skin?

A

Conduction

B

Convection

C

Radiation

D

Advection

correct option: c
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