All Physics Equations for P2 A quick way to learn your equations 3.0 / 5 based on 1 rating ? PhysicsEquations and FormulaeGCSEAll boards Created by: John SmithCreated on: 12-05-11 18:59 Speed For an object moving at a constand speed, we calcularte its speed using... 1 of 30 speed = distance ÷ time 2 of 30 Acceleration Any object with changing velocity is accelerating. We can out its acceleration using this equation... 3 of 30 acceleration = change in velocity ÷ time 4 of 30 Braking The distance travelled on a velocity-time graph can be calculated by... 5 of 30 calculating the area under the line 6 of 30 Force The resulatant force can be calculated by... 7 of 30 mass x acceleration 8 of 30 Falling Objects We can find the force of gravity (weight) on an object using... 9 of 30 mass x gravitational field strength 10 of 30 Working out We use the following equation to calculate the work done by a force when it moves an object... 11 of 30 work = force x distance moved 12 of 30 Kinetic Energy This can be calculated by... 13 of 30 ½ x mass x speed² 14 of 30 Momentum The momentum of a moving object can be calculated by... 15 of 30 momentum = mass x velocity 16 of 30 Changing Momentum In general, the force needed to cause a change of momentum is given by... 17 of 30 force = change in momentum ÷ time 18 of 30 Ammeters and Voltmeters We define the resistance of an electrical component as... 19 of 30 resistance (Ω) = potential difference ÷ time 20 of 30 Calculations of parallel circuits We can calculate the current using this equation... 21 of 30 current = potential difference ÷ resistance 22 of 30 Power The amount of energy transformed in time can be found by... 23 of 30 power = energy transferred ÷ time 24 of 30 Power supplied The power supplied to an object is calculated by... 25 of 30 power supplied = current x potential difference 26 of 30 Calculating Charge The charge in coulombs (C) is calculated by... 27 of 30 charge flow = current x time 28 of 30 Energy and p.d. The amount of energy transformed is... 29 of 30 energy transformed = potential difference x charge flow 30 of 30
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