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Mass, weight

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  • How do you measure mass?
    using a balance
  • Sara says her weight is 35 kg . Do you think she is using the correct units?
    No, her mass is 35 kg.
  • Are weight and mass the same?
    No
  • How do you measure weight?
    using a spring scale
  • Units of weight
    Newton ( N)
  • What is mass?
    It is the amount of matter in an object.
  • What is weight ?
    It is the measure of gravitational force on an object.
  • Do you weigh the same on Mars?
    No
  • Units of mass
    kilogram or kg
  • Is the gravity or gravitational force same on moon and earth?
    No
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