Class 3 Exam Revision 1 Book 3 (Ch.2-4)

Which of the following transfers heat faster?

• A wooden chopstick

• A plastic spoon

• A metal spoon

• A vase

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NGSS.MS-PS3-4

Which of the following transfers heat the fastest?

• A wooden chopstick

• A plastic stick

• A key

• A handkerchief

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NGSS.MS-PS3-3

What happens when we heat a metal object?

• It expands.

• It contracts.

• It does not change.

• None of the above

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NGSS.MS-PS1-4

When does a metal object contract?

• When we heat it

• When we cool it

• When it touches warm water

• When it touches oil

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NGSS.MS-PS1-4

Which of the following items are good conductors of heat? (There can be more than one answer.)

• Iron fork

• Copper wire

• Wooden rod

• Plastic fork

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

When the temperature rises, the liquid in a thermometer ​ (a)   .

• expands
• contracts
• remains unchanged

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NGSS.MS-PS1-4

​ (a)   is not a good conductor of heat. People usually use it to make handles of cookers.

• Plastic
• Glass
• Metal

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NGSS.MS-PS3-3

​ (a)   transfers heat fast and is a good conductor of heat.

• Metal
• Wood
• Plastic

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Iron and copper are good ​ (a)   of heat.

• conductors
• properties
• materials

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NGSS.MS-PS3-3

To hold hot objects safely, we can wear ​ (a)   .

• gloves
• caps
• coats