physics 20 min test revision

Law of Conservation of Energy

energy cannot be created or destroyed but can be transferred from one form to another

kinetic energy

the energy stored by an object when it is moving and is dependent on the object's mass and velocity

gravitational potential energy

potential energy that depends on the object's position in a gravitational field and its mass.

total energy in a closed system...

remains constant

chemical energy

Energy stored in chemical bonds

elastic potential energy

the energy stored by an object when its squashed or stretched

electrical energy

energy that depends on a charged object's position in an electric field

nuclear energy

Energy stored in the nucleus of an atom

radiant energy

energy carried by photons

sound energy

Energy caused by an object's vibrations

internal energy

this is equal to the sum of all the kinetic energies and the potential energies of all the particles of an object