Power (P = E ÷ t)
AQA GCSE Physics calculation · part of the free Calculation Climb
Power = energy transferred ÷ time (or work done ÷ time). Measured in watts (W) — one watt is one joule per second.
How to do it — step by step
- power = energy transferred ÷ time.
- P = E ÷ t. (Rearrange: energy = power × time.)
Worked example
A motor transfers 600 J in 4 s.
P = 600 ÷ 4 = 150 W
Now practise it — free
Science Street's Calculation Climb walks you from a worked example, through a guided step-by-step version, to questions you do yourself — with fresh examples every time and a built-in calculator and periodic table. No sign-up needed.
Practise Power (P = E ÷ t) on Science Street →