Question |
Answer |

SI unit of length |
metre (m) |

SI unit of mass |
kilogram (kg) |

SI unit of time |
second(s) |

SI unit of area |
metre squared |

SI unit of volume |
metre cubed |

Used to measure straight lines |
Ruler/metre stick |

Used to measure short curved lines |
Opisometre |

Used to measure long curved lines |
Trundle wheel |

Used to measure diameters or widths of objects |
Vernier callipers |

How to calculate the area of a square or rectangle |
Length X Breadth |

How to calculate the area of an irregular shaped object |
Trace outline on graph paper and count squares |

How to calculate volume of a regular shaped object |
Length X Breadth X Height |

How to calculate volume of a irregular shaped object |
Use a graduated cylinder with water or an overflow can and measure the amount of water displaced. |

How to calculate volume liquids |
Pour into graduated cylinder and read volume |