ICSE ICSE Class 7 - CISCE Question Bank Solutions

Write true or false for a given statement.

Kerosene contracts on heating.

Write true or false for a given statement.

Water is a bad conductor of heat.

Write true or false for a given statement.

Land and sea breezes are convection currents of cold and warm air.

 Fill in the blank

_________ determines the degree of hotness or coldness of a body.

Fill in the blank

On heating a body, its temperature _______.

 Fill in the blank

 We use a ________ for measuring the temperature of a body.

Fill in the blank

In a thermometer, the commonly used liquid is _______

Fill in the blank

The temperature of boiling water is _______

Fill in the blank

Liquids expand _______ than the solids.

 Fill in the blank

 Gases expand _______ than the liquids.

Fill in the blank

Metals are _______ of heat.

Fill in the blank

Still air is an __________ of heat.

Fill in the blank

Black and dull surfaces are ______ of heat.

Select the correct alternative

The temperature of pure melting ice is

Select the correct alternative

Which of the statement is correct

Name the instrument used to measure the temperature of a body.

The fig. shows a glass tumbler containing hot milk which is placed in a tub of cold water. State the direction in which heat will flow.

What do you understand by thermal expansion of a substance ?

Name two substances which expand on heating.

Why do telephone wires sag in summer ?