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# Physics Equations

### All the Physics Equations needed for physics triple science 9-1

Question | Answer |
---|---|

What is the Equation linking weight, mass and gravitational field strength | Weight = Mass x Gravitational Field Strength. |

What is the Equation linking work done, force & distance | work done = force x distance |

What is the Equation linking force applied to a spring, spring constant &extension | force applied to a spring = spring constant x extension |

What is the Equation linking moment of a force, force & distance | moment of force = force x distance |

What is the Equation linking pressure, force normal to a surface & area of that surface | Pressure = force normal to a surface ÷ Area of that surface |

What is the Equation linking distance travelled, speed and time | distance travelled = speed x time |

What is the Equation linking acceleration, change in velocity & time taken | acceleration = change in velocity ÷ time taken |

What is the Equation linking resultant force, mass & acceleration | resultant force = mass x acceleration |

What is the Equation linking momentum, mass & velocity | momentum=mass x velocity |

What is the Equation linking kinetic energy, 0.5, mass and speed² | kinetic energy = 0.5 x mass x (speed)² |

What is the Equation linking gravitational potential energy, mass, gravitational field strength & height | gravitational potential energy = mass x gravitational field strength x height |

What is the Equation linking power, energy transferred & time | power = energy transferred ÷ time |

What is the Equation linking power, work done & time | power = work done ÷ time |

What is the Equation linking efficiency, useful output energy transfer & total input energy | linking efficiency = useful output energy transfer ÷ total input energy |

What is the Equation linking efficiency, useful power output & total power output | efficiency = useful power output ÷ total power output |

What is the Equation linking wave speed, frequency & wavelength | wave speed = frequency x wavelength |

What is the Equation linking charge flow, current & time | charge flow = current x time |

What is the Equation linking potential difference, current & resistance | potential difference = current x resistance |

What is the Equation linking power, potential difference & current | power = potential difference x current |

What is the Equation linking power, current² & resistance | power = (current)² x resistance |

What is the Equation linking energy transferred, power & time | energy transferred = power x time |

What is the Equation linking energy transferred, charge flow & potential difference | energy transferred = charge flow x potential difference |

What is the Equation linking density, mass & volume | density = mass ÷ volume |