Question
(a) Explain some uses of insulators.
(b) A wooden spoon is dipped in a cup of ice cream, will its other end become cold? Give a reason for your answer.
[3 MARKS]
(b) A wooden spoon is dipped in a cup of ice cream, will its other end become cold? Give a reason for your answer.
[3 MARKS]
Answer:
:
(a) Uses: 2 Marks
(b) Reason: 1 Mark
(a) Insulators are very important when we are handling substances that are hot such as cooking utensils or welders, etc. Insulators are poor conductors, they do not transmit heat from the hot part of the object to the person holding the insulated part, thus keeping them safe.
(b) No, the other end of the wooden spoon will not become cold because wood is a bad conductor of heat, i.e. wood behaves as an insulator.
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:
(a) Uses: 2 Marks
(b) Reason: 1 Mark
(a) Insulators are very important when we are handling substances that are hot such as cooking utensils or welders, etc. Insulators are poor conductors, they do not transmit heat from the hot part of the object to the person holding the insulated part, thus keeping them safe.
(b) No, the other end of the wooden spoon will not become cold because wood is a bad conductor of heat, i.e. wood behaves as an insulator.
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