Pressure
Force acting on a given area.
Pressure
Liquid pressure increases with this.
Depth
Gas pressure is caused by moving _____.
Particles
Everything is made of tiny moving _____.
Particles
Movement of particles from high concentration to low concentration is called___.
Diffusion
Unit used to measure pressure.
N/m²
The bottom hole in the bottle experiment had the greatest _____.
Pressure
Increasing this raises gas pressure.
Temperature
State of matter with particles furthest apart.
Gas
Diffusion is fastest in this state of matter.
Gas
Pressure increases when this becomes smaller.
Area
Water pressure depends on the _____ of water above.
Weight
Decreasing this raises gas pressure.
Volume
Substances do this when heated
Expand
Amount of particles in a given space is called_________.
Concentration
Tool that works because of high pressure at a sharp edge.
Knife/axe/sword
Condition caused when divers surface too quickly.
Decompression sickness
Air pressure around Earth is called__________.
Atmospheric pressure
Solid changing into a liquid is called__________.
Melting
Mixing together of particles is called_________.
Intermingle
A box weighs 1200 N and rests on an area of 3 m². Calculate the pressure.
400 N/m²
A diver moves from 5 m depth to 20 m depth. Does the water pressure increase or decrease?
Increases
A sealed balloon is placed in a freezer. What happens to the pressure inside the balloon?
Decreases
A gas is heated while kept in the same container. What happens to the gas pressure?
Increases
Two cups contain the same food colouring. One cup contains cold water and the other hot water. In which cup will diffusion occur faster?
Hot water