Energy transfers (stores)

Kinetic

Movement / motion

Thermal

Heat energy stored in particles

Chemical

Battery, petrol, food

Gravitational potential

Stretched/ squashed/ twisted

Electrostatic

Thunder/ lightning

Magnetic

Magnets / compasses

Nuclear

Energy stores in the nucleus of an atom

Mechanically transferred

Involving a force

Electrically transferred

Transferred with electrons

Transferred by heating

Conduction and convection

Transferred by radiation

Light or sound (waves)

Sankey diagram

Visual representation of useful and wasted energy

Energy efficiency equation

Useful output / total input x 100 = %