Mass and Weight

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Mass and Weight
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Mass and Weight

• Mass (m) is the amount of matter in an object.
• Weight (Wt) is the Force of gravity acting on the
  mass of the object.
• Wt m x g
• Wt Weight Newton (N)
• m mass kilogramme (kg)
• g grav field Newton/kilogramme (N/kg).

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Example (1)

• Find the weight of a person of mass 60 kg on the
  Earth where g 10 N/kg.
• Wt m x g
• Wt 60 x 10
• Wt 600 N
  .

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Example (2)

• What is the weight of a 400 g mass on the
  surface of the Earth where g 10 N/kg ?
• Wt m x g
• Wt 0.4 x 10
• Wt 4 N
  .