Internal energy (AQA GCSE Physics Combined Science): Flashcards
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Internal energy definition
Internal energy definition
Total energy stored by all particles in a system
Do all forms of matter have internal energy?
Do all forms of matter have internal energy?
Yes, all matter has internal energy
Two components of internal energy
Two components of internal energy
Kinetic energy and potential energy of particles
Source of kinetic energy component
Source of kinetic energy component
How fast particles are moving
Kinetic energy and temperature link
Kinetic energy and temperature link
Hotter objects have faster-moving particles, more KE
Source of potential energy component
Source of potential energy component
Particle positions and forces between them
Temperature during state changes
Temperature during state changes
Stays constant
Formula for temperature changes
Formula for temperature changes
in
in
Specific heat capacity
Formula for state changes
Formula for state changes
in
in
Specific latent heat
Energy change during temperature rise
Energy change during temperature rise
KE increases, PE stays roughly the same
Energy change during state change
Energy change during state change
PE increases, KE doesn't change