Expansion of Air on heating

Air expands when it is

• heated

• cooled

A sealed tight empty water bottle is kept in a freezer. After some time it will :

• Expand.

• Contract.

• Remain same.

If a hot air ballon is going to Mercury (nearest planet to sun) from Earth. What should we do to stop it from exploding

• take out some air.

• fill up some more air.

While climbing a high mountain, temperature decreases as we go up.In this context air in the a car’s tyre will ________________________ while climbing up a mountain.

• Expand

• Contract

In the same experiment which of the following will cause most expansion in ballon.

• Ice water.

• Tap water.

• boiling water.