Physics Key Equation and other Keywords form cp1- cp6 0.0 / 5 ? PhysicsEquations and FormulaeKey words across all topicsGCSEEdexcel Created by: roshan231Created on: 30-12-18 15:38 What is the equation for velocity Acceleration x time or distance/time 1 of 22 Equation for acceleration? a = v-u/t 2 of 22 Equation for finding the resultant force? F = m x a 3 of 22 For falling objects, what is the equation now? (weight) W = m x g 4 of 22 Equation for work done? W = F x d 5 of 22 Equation for gravitational potential energy? Ep = m x g x h 6 of 22 Equation for kinetic energy? Ek= 1/2 x m x v2 7 of 22 Equation for momentum? p = m x v (p= momentum) 8 of 22 What is activity? The number of emissions per second 9 of 22 Change in momentum mv-mu 10 of 22 What is displacement? The change in objects position,(in a straight line), measured in meters 11 of 22 What is inertial mass? How hard it is to change the velocity of an object, m = f/a 12 of 22 What is the relationship between acceleration and mass? They are inversely proportional 13 of 22 What is another equation for force? force = (mv-mu)/t 14 of 22 What is the correlation between weight and gravity? They are directly proportional 15 of 22 How do you calculate frequency? F = 1/Time period of wave 16 of 22 v2 - u2 = 2 x A x X 17 of 22 Explain the conservation of energy Energy can neither be created or destroyed 18 of 22 Energy transfers in a closed system results in; no net change to the total energy in that system 19 of 22 How to reduce unwanted energy transfers (wasted energy) For mechanical devices; lubrication to stop friction, to stop unwanted thermal transfers use insulation 20 of 22 What is a wave length? distance covered by a full cycle of the wave. 21 of 22 How are radio waves produced oscillation in electric current 22 of 22
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