Physics 1 5.0 / 5 based on 7 ratings ? PhysicsP1GCSEAQA Created by: Joods2204Created on: 27-01-16 14:56 Give four ways we can reduce the heat loss from buildings Aluminium foil behind radiators, cavity wall insulation, double glazing & loft insulation 1 of 21 Give the 6 different forms of energy Chemical, Kinetic, Gravitational Potential, Elastic, Electrical and Thermal 2 of 21 What is chemical energy? Energy stored in fuel, released when a chemical reaction takes place 3 of 21 What is kinetic energy? The energy of a moving object 4 of 21 What is gravitational potential energy? Energy of an object due to its position 5 of 21 What is elastic energy? The energy stored in a springy object when we stretch/squash it 6 of 21 What is electrical energy? Energy transferred by an electric current 7 of 21 What is thermal energy? An objects energy due to its temperature. 8 of 21 What does it mean when energy is transformed? When energy turns from one form into another 9 of 21 What happens, in terms of energy, when a roller coaster climbs upwards and races downwards? Gaings gravitational potential energy when it climbs, Loses gravitational potential energy when it races downwards, 10 of 21 Give the 4 changes in energy that occurs when a roller coaster decends? Gravitational potential energy, Kinetic energy, Sound energy, Thermal energy 11 of 21 What is the conservation of energy? A rule that says energy cannot be created or destroyed 12 of 21 What is useful energy? Energy transferred to where its wanted in the form it is wanted. 13 of 21 What is wasted energy? Energy that is not usefully transferred or transformed 14 of 21 Where does useful and wasted energy both end up being transferred to? The surroundings, which become warmer 15 of 21 Why is it bad when energy spreads out? It gets more and more difficult to use for further energy transfers. 16 of 21 In terms of energy, what happens when you lift an object The useful energy from your muscles goes to the object as Gravitational Potential energy 17 of 21 What is weight measured in? Newtons, N 18 of 21 What is energy measured in? Joules, J 19 of 21 Equation for working out the efficiency of an object Efficiency= useful energy transferred by the device / total energy supplied by the device 20 of 21 What does wasted energy cause Inefficiency 21 of 21
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