Solids, liquids and gases

DENSITY IN REGULAR SHAPES DENSITY IN LIQUIDS




DENSITY IN IRREGULAR SHAPES




PRESSURE

pressure = force / area P=F/A

5. I understand how the pressure at a point in a gas or liquid at rest acts equally in all directions

The pressure at a point in a gas or liquid at rest acts equally in all directions and causes a force at right angles to any surface.
- Pressure in a fluid (gas or liquid) is created from the movement of particles (as they collide with a surface)
- In gasses and liquids at rest, the pressure at any point acts equally in all directions. The pressure increases
the depth.

pressure difference: p = h × ρ ×g



INCREASE IN TEMP = INCREASE IN TEMP OF GAS MOLECULES

As you increase the temperature of a gas, the kinetic energy of the gas particles increases and thus their
average speed also increases.