An iron washer is heated. State the effect on its mass.

One Line Answer

Mass remains same on heating.

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Chapter 6: Heat Transfer - Short/long Answer Questions [Page 121]

Chapter 6 Heat Transfer
Short/long Answer Questions | Q 38.1 | Page 121

A longer rod expands ........... than a shorter rod on being heated to the same temperature.

State three factors on which depend the linear expansion of a metal rod on heating.

One rod of copper and another identical rod of iron are heated to the same rise in temperature. Which rod will expand more? Give reason.

A metal plate is heated. State three factors on which the increase in its area will depend.

Water is heated from 0°C to 4°C. Will it expand?

Complete the following sentence:

When ice melts its volume ______ and density _______.

Solids ______ on heating and ______ on cooling.

Explain thermal expansion with suitable examples.

The expansion in volume is called linear expansion.