Apart from depth, state two other factors that affect pressure in liquids.

2. Apart from depth, state two other factors that affect pressure in liquids.

The pressure in a liquid is given by the formula $P = \rho gh$.
The two other factors that affect pressure in liquids, besides depth ($h$), are:

• Density ($\rho$) of the liquid.
• Acceleration due to gravity ($g$).

3. Explain how a person is able to suck liquid from a bottle using a drinking straw.

When a person sucks on a drinking straw, they reduce the air pressure inside the straw. The atmospheric pressure acting on the surface of the liquid in the bottle is then greater than the pressure inside the straw. This pressure difference forces the liquid up the straw and into the person's mouth.