The Cost Of Electricity 0.0 / 5 ? PhysicsEquations and FormulaeGCSEAQA Created by: Samb0yCreated on: 19-05-14 18:52 Energy is usually measured in what? Joules (j) 1 of 6 Power is usually measure in what? Watts (w) or Kilowatts (kW) 2 of 6 Which is true? A 5kW appliance transfers 5000 J in 1 second 3 of 6 Which formula is correct - Cost = No. of Units x Price of Units 4 of 6 An electricity supplier charges 14p per unit. Find the cost of of leaving a 60 W light bulb on for a year. £73.58 5 of 6 Each unit costs 14p. For how long can a 6kW heater be used for? 10 minutes 6 of 6
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