Primary · P4–P6
Energy Chain
Round 1/6Score: 0
Energy detective
Build the energy chain
Choose the energy forms in order.
Energy tracker
UsefulWasted as heat
Energy-flow strip
All 100 J of input energy is changed into other forms. No energy disappears.
The physics
Energy can change form, but the total amount stays the same.
Input energy = useful energy + wasted energy.
For every device here: 100 J = useful energy + heat energy.
Some useful energy may become sound, light or movement.