Physics work and energy 0.0 / 5 ? PhysicsEnergyGCSEWJEC Created by: gmccarthy123Created on: 04-01-21 12:40 What does work done mean? The energy transferred to an object when it is moved 1 of 12 How do you calculate work done? Force x distance 2 of 12 Explain kinetic energy Objects that are moving have kinetic energy. The faster it moves, the more kinetic energy it has. 3 of 12 What is kinetic energy measured in? Joules (J) 4 of 12 How do you calculate kinetic energy? mass x speed^2 divided by 2 5 of 12 What is gravitional potential energy measured in? Joules(J) 6 of 12 How do you calculate change in GPE? Mass x GFS (always 10) x change in height 7 of 12 Explain energy transfer Energy cannot be created or destroyed, it is transferred from one form to another 8 of 12 What is Hooke's law? The extension of the material is directly proportional to the force applied 9 of 12 How do you calculate the force in Hooke's law? Force= spring constant x extension of spring 10 of 12 What is work done equal to? The area under the force extension graph 11 of 12 How do you calculate the work done in stretching a spring? Work done in stretching a spring = 1/2 Fx 12 of 12
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