Physics - Power 0.0 / 5 ? PhysicsEnergyGCSEAQA Created by: LunaShomeiRoseCreated on: 22-10-18 19:23 What is power? Rate of energy transfer/work done 1 of 8 How do you calculate power? Work or energy transferred / time 2 of 8 What's work measured in? Joules (J) 3 of 8 What's power measured in? Watts 4 of 8 What's time measured in? Seonds 5 of 8 1 watt = 1 Joules of energy tranfere/work done per second. True? Yes 6 of 8 180,000 J. 500s. Use this to work out power 180000/500 = 360 watts 7 of 8 When car stops 40,000 J of work is done by breaks in 5s. Calculate power 40000/5 = 8000 watts 8 of 8
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