Internal Energy & Energy Transfers (AQA GCSE Physics): Flashcards
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Practise the cards
13 cards from this deck
What is internal energy?
What is internal energy?
All energy stored inside a system by its particles
Two components of internal energy
Two components of internal energy
Kinetic energy and potential energy of particles
Source of kinetic energy in particles
Source of kinetic energy in particles
Particle movement - faster movement = more kinetic energy
Source of potential energy in particles
Source of potential energy in particles
Particle positions relative to each other
Effect of heating on kinetic energy (no state change)
Effect of heating on kinetic energy (no state change)
Kinetic energy increases, particles move faster
Temperature during a state change
Temperature during a state change
Stays constant
What changes during a state change
What changes during a state change
Potential energy changes, kinetic energy stays same
Equation for energy during temperature change
Equation for energy during temperature change
What represents in energy equations
What represents in energy equations
Energy (J)
What represents in
What represents in
Specific heat capacity (J/kg°C)
Equation for energy during state change
Equation for energy during state change
What represents in
What represents in
Specific latent heat (J/kg)
Condition for temperature rise during heating
Condition for temperature rise during heating
When kinetic energy increases (no state change)