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# Y11 physics formulas

### formulas for AS90940 mechanics

Term | Definition |
---|---|

= d / t | v |

= d/v | t |

= txv | d |

= ma | F |

= mg | F |

=mgh | Ep |

=v/t | a |

=axt | v |

=a/v | t |

=F/A | P |

=1/2 mx v2 | Ek |

=E/t | P |

g on earth | 10 N/lg |

W | = Fxd |

distance (m) = velocity (m/s) x time (s) | d = v x t |

time = distance / velocity | t = d / v |

velocity = distance / time | v= d / t |

force = mass x acceleration | F = m a |

force (weight) = mass x gravity | F = m g |

gravitational potential energy (J) = mass (kg) x gravity (N/kg) x height (m) | Ep = mgh |

acceleration = velocity / time | a = v/t |

velocity = acceleration x time | v = at |

time (s) = acceleration (m/s2 squared) / velocity (m/s) | t = a/v |

Pressure (Pa) = Force (N)/ Area (m2) squared | P = F/A |

Kinetic energy (J) = 1/2( mass (kg)) x (velocity (m/s))2 (squared) | Ek = 1/2mv2 (squared) |

Power (W) = Energy (J) / time (s) | P = E/t |

Work (J) = Force (N) x distance (m) | W = Fd |

convert m/s to km/hr x 3.6 | convert km/hr to m/s divide by 3.6 |