Physics Formulae

PLEASE NOTE: This is based on the Nelson Thornes Physics for IGCSE textbook

• Created by: Fraser
• Created on: 26-12-12 12:47
• Physics Formulae
• Motion
• Speed = Distance/Time
• Acceleration = Velocity/Time
• Forces
• Weight = Mass x Gravity
• Density = Mass/Volume
• Extension = Length - Initial Length
• Force = Extension x Constant
• Force = Mass x Acceleration
• Energy
• Efficiency =  Output/Input
• Work Done = Force x Distance
• Gravitational Potential Energy = Mass x Gravity x Height
• Kinetic Energy = 0.5 x Mass x Velocity²
• Power = Energy/Time
• Pressure
• Pressure = Force/Area
• Pressure1 x Volume1 = Pressure2 x Volume2
• Thermal Physics
• Thermal Capacity = Energy/Change in Temperature
• Specific Heat Capacity = Energy/Mass (Change in Temp.)
• Specific Latent Heat = Energy/Mass
• Waves
• Speed = Frequency x Wavelength
• Light
• Angle of Incidence = Angle of Reflection
• Refractive Index = Speed of Light in Air/Speed of Light in Substance
• Electricity
• Charge = Current x Time
• Electromagnetic Force = Energy Produced/Charge
• Potential Difference = Energy Supplied/Charge
• Resistance = Potential Difference/Current
• Energy Transferred = Power x Time
• Electrical Power Supplied = Current x Potential Difference x Time
• Total Resistance (Series) = Resistance 1 + Resistance 2
• 1/Total Resistance (Parallel) = 1/Resistance1 + 1/Resistance2