Question

5. Write the difference between expansion and contraction. F Answer the following an
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Answer 1

Answer:

The increase in size of an object on heating is called expansion whereas the decrease in size of an object on cooling is called contraction.

Explanation:

When a substance is heated, it becomes larger in size. This process, when an object expands on heating, is known as expansion. ... When a substance is cooled, it shrinks in size. This process, when an object contracts on cooling, is known as contraction

Answer 2

Answer:

The increase in size of an object on heating is called expansion whereas the decrease in size of an object on cooling is called contraction.

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Explanation: