Physics Paper 1
Efficiency and power
Energy training before the targeted original question drill.
Adaptive teaching card
Make it concrete
Analogy
Efficiency and power is like tracking a system with arrows and numbers: decide what changes, what stays conserved, and what equation describes it.
Why now: An analogy helps when the definition feels abstract.
Do this: Match each part of the analogy to the science idea.
Learn it
Efficiency compares useful output energy to total input energy.
Power is the rate of energy transfer.
Reducing wasted energy improves efficiency.