Standard Science Primary 4 Energy

Why is the base of a frying pan usually made of metal, while the handle is made of plastic?

A Metal is a good conductor to cook food fast; plastic is a poor conductor for safety.
B Metal is a poor conductor to keep food hot; plastic is a good conductor.
C Metal is flexible while plastic is stiff.
D Metal reflects heat while plastic absorbs it.
Show Worked Solution

Worked Solution

Step 1: The base needs to transfer heat from the stove to the food efficiently (good conductor). Step [2-9]: The handle needs to remain cool so it can be held (poor conductor/insulator). Step [2-9]: Metal and plastic fit these respective roles.

Correct answer: Metal is a good conductor to cook food fast; plastic is a poor conductor for safety.

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