# Physics gcse formulas

rename
zariboka's
version from
2017-05-23 10:54

## Section 1

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

Average speed= | Distance/time |

Force= | Mass x acceleration |

Acceleration= | Change in velocity/time taken |

Momentum(kg/m2)= | Mass x velocity |

Efficiency= | Useful energy output from the system/total energy input to the system x 100% |

## Section 2

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

Density= | Mass/volume |

Work done= | Force x distance moved in direction of force |

Energy transferred= | Work done |

Kinetic energy= | 1/2 x mass x speed2 |

Change in gravitational potential energy= | Mass x gavitational field stregnth (10) x change in height |

## Section 3

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

Weight= | Mass x gravitational field stregnth |

Pressure= | Force/area |

Moment= | Force x perpendicular distance from pivot |

Charge= | Current x time |

Voltage= | Current x resistance |

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