Heat & Cooling Flashcards
What temperature does water boil?
100°C.
What is Degrees Celsius (°C)?
It is a unit for a temperature.
What is temperature?
The energy per particle measured in degrees Celsius.
What is convection?
Particles move, and transfers thermal energy from particles to particles.
What is conduction?
Thermal energy is passed from particles to particles in a solid.
What is convection current ?
A circular movement of hot gas or liquid, rising and cool gas or liquid falling.
What is evaporation?
The change of a liquid into a gas using thermal energy transferred from the liquids surroundings
When does solid and liquid expand?
It expands when heated.
Why does solid and liquid expand?
It expands because the particles vibrate more and take up more space.
what is contraction?
When a material gets smaller.
How does solids gets smaller?
It gets smaller when it is cooled.
What is Infrared radiation?
Carries thermal energy from a hotter object to a cooler object.
What is radiation?
The transfer of thermal energy without particles.
what is thermal insulator?
A material that allows very little heat energy to flow.
What does evaporation do?
It cools things down.
