Physics Equations for IGCSE

Pregunta	Respuesta
Speed Distance Time	Speed= Distance / time
Acceleration Time taken Change in Velocity	Acceleration = Change in velocity / Time
Weight Gravitational Field Strength Mass	Weight = Mass x Gravitational Field Strength
Force Acceleration Mass	Force = Mass x Acceleration
Thinking distance Stopping distance	Stopping distance = Thinking distance
Momentum Mass Velocity	Momentum = Mass x Velocity
Force acting Change in momentum Time taken for change to happen	Force = Change / time
Total anticlockwise moment Total clockwise moment	Total anticlockwise moment = Total clockwise moment
Electrical power voltage current	Electrical power = current x voltage
Energy transferred voltage current time	Energy transferred = voltage x current x time
voltage resistance current	voltage = current x resistance
Charge current time	charge = current x time
wavespeed Frequency wavelength	Wavespeed = Frequency x wavelength
angle of incidence angle of reflection	angle of incidence = angle of reflection
refractive index speed of light in a vacuum speed of light in that material	refractive index = speed of light in a vacuum / speed of light in that material
sin c n	sin c = 1 / n
efficiency total input useful output	efficiency = Useful output / Total input
power time work done	power = work done / time
work done distance moved force	work done = distance moved x force
Kinetic energy mass speed	Kinetic energy = 0.5 x mass x speed(2)
GPE Mass Gravitational field strength height	GPE = mgh
density volume mass	density = mass / volume
pressure area force	pressure = force / area
pressure difference g density height	pressure difference = height x density x g
constant temp pressure volume	temp = pressure x volume (p1V1 = p2V2)
constant vol temp pressure	vol = pressure / temp (k) (p1 / T1 = p2 / T2)

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