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Physical Science

QuestionAnswer
Energy The ability to make change happen
Energy transfer The flow of energy from one object into another.
Energy transformation The conversion of one type of energy into another type of energy, for example the conversion of electrical energy in a device (ipad/phone etc) to light, sound and heat.
Joule A unit of measurement of Energy.
KINETIC ENERGY Energy possessed by a moving object
POTENTIAL ENERGY Stored energy possessed by an object
CHEMICAL ENERGY Energy stored within a substance.
ELASTIC POTENTIAL ENERGY Energy stored within a stretched or compressed object
GRAVITATIONAL POTENTIAL ENERGY The stored energy of an object that is held above the Earth’s surface
CONDUCTION Heat transfer between two objects in contact
CONVECTION The transfer of heat in a liquid or gas
RADIATION Heat transfer as a wave, which can even travel through the vacuum of space
TEMPERATURE A measure of the average kinetic energy of a substance
INSULATOR A substance which does not readily allow the passage of heat or sound. A poor conductor of electricity
HEAT ENERGY A measure of the total kinetic energy possessed by particles in a substance.
ENERGY EFFICIENCY The proportion of useful energy output from a device compared to the amount of energy that is input; usually expressed as a %
LAW OF CONSERVATION OF ENERGY The ‘law’ that energy cannot be created or destroyed, but can only be transferred from one object to another or transformed into another form of energy
INSULATION Material used to reduce heat transfer
FLUIDs Substances that have no fixed shape
SOLAR ENERGY Radiant light and heat energy
Created by: knmangalath
 

 



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