energy stored by 2magnetics attracting or repelling one another
law of conservation of energy= energy cannot be created or destroyed
what is melting?
Solid to liquid
Freezing?
Liquid to solid
Evaporate?
Liquid to gas
Condense?
gas to liquid
Sublimate?
solid to gas
energy stored inside a system by the particles that make up the system. Particles in a system vibrate or move around. Therefore, they must have a kineticenergy store.
Einternal=Ek+Ep internal energy
power?
the rate at which energy is transferred(or rate at which work is done)
4 energy transfers?
mechanical= when force moves an object a distance
heating= energy is transferred from hot to cold object
electrical = energy is transferred by a moving charge due to pd
radiation= energy is transferred as an electromagnetic wave
how is workdone taken place when pushing shopping trolley?
transferring chemicalenergy stored in your body to kineticenergy for the trolley
