click below
click below
Normal Size Small Size show me how
Physics Equations
Term | Definition |
---|---|
Speed | Speed = Distance ÷ Time |
Force | Force = Mass × Acceleration |
Velocity | Velocity = Displacement ÷ Time |
Acceleration | Acceleration = (Final Velocity - Initial Velocity) ÷ Time taken |
Weight | Weight = Mass × Gravitational Field Strength |
Momentum | Momentum = Mass × Velocity |
Force (momentum) | Force = Mass × ((Final velocity - Initial Velocity) ÷ Time) AKA Force = Change in Momentum ÷ Time |
Kinetic Energy | Kinetic Energy = 1/2 × Mass × Velocity^2 |
9 Energy Types | Sound, GPE, Kinetic, Light, Heat/Thermal, Electrical, Nuclear, Elastic, Chemical |
Efficiency | Efficiency = Useful Energy Out ÷ Total Energy in |
Change in GPE | Change in GPE = Mass × Gravitational Field Strength × Change in Vertical Height |
Wavelength | The distance between two wave peaks |
Amplitude | The height of a peak |
Wavespeed | Wavespeed = Frequency × Wavelength |
Human frequency hearing range | 20Hz - 20kHz |
Distance | Distance = Time × Speed |
Work | Work = Force × Distance |
Power | Power = Work Done ÷ Time |
Stopping Distance | Stopping Distance = Thinking Distance + Braking Distance |
Moment | Moment = Force × Distance Moved Perpendicular to the direction of force from the pivot |
Power (Time) | Power = Energy Transferred ÷ Time take |
Charge | Charge = Current × Time |
Energy Transferred | Energy Transferred = Charge × Potential Difference |
Potential Difference | Potential Difference = Current × Resistance |
Mains Voltage | 230V |
Power (Resistance) |