Physics equations 0.0 / 5 ? PhysicsequationsIGCSEEdexcel Created by: liztoomerCreated on: 02-06-16 08:43 Electric current = ..... ? Electrical current = Charge flowed/time taken 1 of 18 Resistance = ...? Resistance = voltage/current 2 of 18 Speed = ..? Speed = distance/ time 3 of 18 Acceleration = ...? Acceleration = Gain in speed/ time taken 4 of 18 Pressure = ....? Pressure = force/area 5 of 18 Amplitude This is the maximum vibration 6 of 18 Wave length The distance between each of the top of the waves 7 of 18 Frequency The number of crests that move past a single point 8 of 18 Time period The time taken for a whole cycle of vibration 9 of 18 Wace speed The distance a wave travels per unit time 10 of 18 Speed = ...? square root of 2 x K.E/mass 11 of 18 Kinetic energy = 1/2 x mass x (Velocity) squared 12 of 18 Gravitational Potential Energy (GPE) = mass x acceleration of free fall x change in height 13 of 18 Power = work done/ time taken 14 of 18 Refractive index = speed of light in air/ speed of light in medium 15 of 18 Normal = sin i/sin r 16 of 18 Efficiency = useful energy output/ total energy input (x100 for a %) 17 of 18 Work done = force x distance moved 18 of 18
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