Physics P1.3 0.0 / 5 ? PhysicsEnergyGCSEAQA Created by: emily13566Created on: 11-10-16 18:17 What does power mean? Rate of energy transfer. 1 of 6 What is the equation to find power? Power = energy / time 2 of 6 Which 2 factors does the amount of energy supplied to an appliance depend on? 1. how long it's used for 2. the power supplied to it 3 of 6 How's the total cost of the electricity used in the home calculated from its reading? total cost = number of kWh used * cost per kWh 4 of 6 What does the term 'cost-effective' mean? Getting the best value for money. 5 of 6 What is meant by the 'payback time' of insulation? Home owners install extra insulation to reduce heat loss and save money. 6 of 6
Comments
No comments have yet been made