Thermal Energy and Heat
Terms
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- thermal expansion
- the expansion of matter when it is heated
- heat
- the movement of thermal energy from one substance to another
- states
- the three forms (solid, liquid, gas) in which matter exists
- Kelvin scale
- the temperature scale on which 0 is the temperature at which no more energy can be removed from matter
- Celsius scale
- the temperature scale on which 0 and 100 are the temperatures at which water freezes and boils
- convection current
- a current caused by the rising of heated fluid and sinking of cooled fluid
- conduction
- the transfer of thermal energy between particles within a substance.
- radiation
- the transfer of energy by electromagnetic waves
- change of state
- the physical change of matter from one state to another
- Fahrenheit scale
- the temperature scale on which 32 and 212 are the temperatures at which water freezes and boils
- heat engine
- a device that converts thermal energy into mechanical energy
- freezing point
- the temperature at which a substance changes from a liquid to a solid
- convection
- the transfer of thermal energy by the movement of currents within a fluid
- bimetallic strip
- a strip made of two different metals that expand at different rates
- absolute zero
- the temperature at which no more energy can be removed from matter
- internal combustion engine
- an engine powered by fuel burned inside the engine
- specific heat
- the amount of thermal energy required to raise the temperature of 1 kg of a substance 1 Kelvin
- insulator
- a material that does not transfer thermal energy or electric current between it particles
- external combustion engine
- an engine powered by fuel burned outside the engine
- thermostat
- a device that regulates temperature