Mass | Weight | |
---|---|---|

1. | Mass of a body is defined as the quantity of matter contained in it. | Weight of a body is the force with which it is attracted towards the centre of the earth. W = mg |

2. | Mass of a body remains constant and does not change from place to place. | Weight of a body changes from place to place. It depends upon the value of g. Weight of a body on another planet will be different. |

3. | Mass is measured by a pan balance. | Weight is measured by a spring balance. |

4. | Unit of mass is kg. | Unit of weight is newton or kg-wt. |

5. | Mass of a body cannot be zero. | Weight of a body can be zero. Ex. astronauts experience weightlessness in spaceships. |

6. | Mass is a scalar quantity. | Weight is a vector quantity. |

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