The diagram represents and energy change.

Copy and complete the word equation for this energy change $:$

Waste energy$=$

The diagram represents and energy change.

Copy and complete the word equation for this energy change $:$

Efficiency$=$

What is the energy conversions $?$ Write an equation.

A glow-worm is an insect that glows in the dark. Chemicals in its body react together to produce light and heat.

What are the energy conversions $?$ write an equation.

An electric motor is used to start a computer's disk drive spinning round.

What are the energy conversions $?$ write an equation.

A wind turbine spins and generates electricity.

What are the energy conversions $?$ write an equation.

Function in a car's brakes slows it down.

The girl on a skate ramp roller-skates down one side of the slope and up opposite side. She cannot quite reach the top of the slope, level with her starting position.

What energy conversion is taking place as the girl moves downwards $?$

The girl on a skate ramp roller-skates down one side of the slope and up opposite side. She cannot quite reach the top of the slope, level with her starting position.

What energy conversion is taking place as the girl moves back upwards$?$