Internal Energy (AQA GCSE Physics): Flashcards
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Practise the cards
13 cards from this deck
What is internal energy?
What is internal energy?
Energy stored by particles within a system
Two forms of energy in internal energy
Two forms of energy in internal energy
Kinetic energy and potential energy
Effect of heating on a system
Effect of heating on a system
Increases the internal energy
Two effects of increasing internal energy
Two effects of increasing internal energy
Raises temperature OR produces change of state
Melting process
Melting process
Solid to liquid
Freezing process
Freezing process
Liquid to solid
Boiling process
Boiling process
Liquid to gas
Condensation process
Condensation process
Gas to liquid
Sublimation process
Sublimation process
Solid to gas
Mass in changes of state
Mass in changes of state
Mass is conserved
Are state changes physical or chemical?
Are state changes physical or chemical?
Physical changes
Reversibility of state changes
Reversibility of state changes
State changes are reversible
What is evaporation?
What is evaporation?
Liquid to gas on surface of liquid only