TEST YOURSELF

Describe an experiment to show that liquid pressure depends on the density of liquid. 

A dam has broader walls at the bottom than at the top. Give a reason.

What do you mean by atmospheric pressure?

Write the numerical value of the atmospheric pressure on the earth surface in pascal.

Describe a simple experiment to illustrate that air exerts pressure.

Describe the crushing tin can experiment. What do you conclude from this experiment ?

Give reasons for the following : 

Water does not run out of a dropper unless its rubber bulb is pressed.

Find the thrust required to exert a pressure of $50,000$ pascal on an area of $0.05 {\mathrm{m}}^2$.