Energy transfer by heating Flashcards
Infrared radiation
Electromagnetic waves between visible light and microwaves in the electromagnetic spectrum.
Emit
Gives out radiation.
Absorber
A substance that takes in radiation.
Emitters
A substance that gives out radiation.
Reflector
A surface that reflects radiation.
Soild
A state of matter.
Liquid
A state of matter.
Gas
A state of matter.
Conduction
Transfer of energy from particle to particle matter.
Conductor
Material/object that conducts.
Free election
Electron that moves about freely inside a metal and is not held inside an atom.
Insulator
Material/object that is poor conductor.
Convection
Transfer of energy by the bulk movement of a heated fluid.
Fluid
A gas or liquid.
Convection current
The circular motion of matter caused by heating in fluids.
Evaporation
Turning from liquid into vapour.
Temperature
The degree of hotness of a substance.
Condensation
Turning from vapour into liquid.
Temperature difference
Difference in temperature between two points.
Maximise
Make as big as possible.
Minimise
Make as small as possible.
Specific heat capacity
Energy needed by 1kg of the substance to raise its temperature by 1 degree.
Mass
The quantity of matter in an object; a measure of the difficulty of changing the motion of an object ( in Kilograms, Kg)
Energy Transfer
Movement of energy from one place to another or one form to another.
