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) |