Unit 4 Assessment

What is temperature

• A form of energy
• a measure of how hot or cold something is

What is heat

• the energy that moves from something hot to something cold
• the measure of how hot something is

Molecules or particles in a hot substance...

• move quickly
• move slowly

Molecules move from

• cold to hot
• hot to cold

The more molecules move...

• the colder they get
• the hotter they get

What is thermal equilibrium

• When energy transfers from hot to cold until both objects reach the same temperature
• When all the cold molecules move to the hot molecules

Why does the sand at the beach feel hotter than the water?

What is conduction?

• The transfer of heat through the air
• The transfer of heat through touching/direct contact

What is convection?

• The transfer of heat through the air or water
• The transfer of heat through waves

What is radiation

• The transfer of heat through moving air/water
• The transfer of heat through waves