Winds Storms an...

When a balloon is filled with air, which of the following holds true?

Paheli's father gifted her a polka dot balloon one summer day. Her mother turns the air conditioning on. What would Paheli observe with the balloon after an hour inside the cold room?

In the experiment to demonstrate that air exerts pressure, when ice cold water is poured over a sealed tin can containing hot air, the can collapses. Pick the correct explanation for the experiment.

A magician fills up one third of a glass with water. He places a card over the mouth of the glass and inverts it. Why doesn't the water fall?

Boiling tubes with balloons tied to their necks are placed in different beakers containing liquids at different temperatures as shown. Which of the following represent the correct order of the temperature of the liquids?

Which balloon has higher air pressure inside?

Boiling tubes with a balloons tied to their necks are immersed in three different liquid samples as shown in the image. Which sample contains hot water?

Consider the following statements.
A. Air has the capacity to do work.
B. Air exerts pressure

Which of the following is not true for hot air in comparison to colder air?

What can you say about the density of air inside a hot air balloon?