Physics - Electricity - Circuits - Electrical power and energy - Power Rating Detective
Present household items with power ratings and ask questions. (1) 'A 60W light bulb vs a 100W bulb. Which is brighter?' (100W - uses more energy per second). (2) 'A 2000W kettle vs a 10W phone charger. Which costs more to run?' (Kettle - 200× more power). (3) 'A 100W bulb on for 10 hours uses ___ kW