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# Circular motion

### Starter

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

Units of angular displacement | Radians |

To convert degrees to radians | Divide by 360 and multiply by 2π |

To convert radians to degrees | Divide by 2π and multiply by 360 |

Symbol for angular displacement | ϴ |

The rate of change of angular displacement is called | Angular Velocity |

The symbol for angular velocity | ω |

We can calculate ϴ by | arc/radius |

The equation for ϴ is | ϴ = s/r |

We can calculate ω by | rate of change of ϴ |

The equation for ω | ω=Δϴ/Δt |

How many radians in a circle | 2π |

The time for an object to complete a circle is | 2π/ω |

The time for one complete rotation is called the | Period (T) |

The equation for the period(T) is | T= 2π/ω |