Density amd pressure

What is density?

Density describes how much mass is packed into a given volume.

How can you measure the density of an object?

By measuring its mass using a balance and its volume by calculation or displacement, then comparing the two.

What is pressure?

Pressure is the force applied per unit area.

How does pressure act in a gas or liquid at rest?

Pressure acts equally in all directions at a point in a fluid at rest.

What factors affect pressure difference in a liquid or gas?

Pressure difference increases with depth (height), density of the fluid, and gravitational field strength.