IGCSE Equation Revision

Created by:

MrsPalmer  on January 9, 2011

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IGCSE Equation Revision

 Force= mass x acceleration
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Definitions

Force = mass x acceleration
Weight = mass x gravitational field strength
Speed = distance / time
Distance = speed x time
Acceleration = change in velocity / time taken
Average Speed = distance traveled / time taken
Moment = force x distance from pivot
Power = current x voltage
Energy Transferred = force x distance
Energy Transferred (electrical) = current x voltage x time
Voltage = current x resistance
Charge = current x time
Wave Speed = wavelength x frequency
Frequency = 1 / period
Refractive index = sin (angle of incidence) / sin (angle of refraction)
sin (critical angle) = 1 / refractive index
Efficiency = useful energy output / total energy input
Gravitational Potential Energy = mass x gravitational field strength x height
Kinetic Energy = 1/2 x mass x velocity squared
Power = work done / time taken
Density = mass / volume
Pressure = force / area
Pressure difference = gravity x density x height difference
pressure 1 x volume 1 = pressure 2 x volume 2

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