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Summary

Summary

MassWeight
Measured in kilogrammes kgMeasured in newtons N
A measure of the amount of matterThe force of gravity acting on the object
Never changesVaries from place to place
MassMeasured in kilogrammes kg
WeightMeasured in newtons N
MassA measure of the amount of matter
WeightThe force of gravity acting on the object
MassNever changes
WeightVaries from place to place
On Earth, an astronaut has a mass of 120 kg. His weight is 120 x 10 = 1200 N. On the moon his mass is still 120 kg but his weight is only 200 N.
Figure caption,
A 120 kg astronaut weighs less on the Moon than on Earth

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