Difference between revisions of "Mass and weight"
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Pupils often have trouble with understanding the difference between '''mass''' and '''weight'''. | Pupils often have trouble with understanding the difference between '''mass''' and '''weight'''. | ||
| − | + | =Travelling to the Moon= | |
| + | * Most pupils already know that the Moon has weaker gravity than the Earth. | ||
| + | * Remind pupils that they could work out the mass of the object by counting the number of atoms in the object. | ||
| + | * Ask pupils to imagine taking something "heavy" to the moon. The number of atoms doesn't change, so the mass doesn't change. | ||
| + | =Newton Scales= | ||
| + | * We do have scales rated in newtons. | ||
| + | =Other= | ||
Here are some good ways of helping pupils understand the difference between mass and weight: | Here are some good ways of helping pupils understand the difference between mass and weight: | ||
# Method one | # Method one | ||
Revision as of 17:44, 7 November 2007
Pupils often have trouble with understanding the difference between mass and weight.
Travelling to the Moon
- Most pupils already know that the Moon has weaker gravity than the Earth.
- Remind pupils that they could work out the mass of the object by counting the number of atoms in the object.
- Ask pupils to imagine taking something "heavy" to the moon. The number of atoms doesn't change, so the mass doesn't change.
Newton Scales
- We do have scales rated in newtons.
Other
Here are some good ways of helping pupils understand the difference between mass and weight:
- Method one
- Method two
- Sub method of two
- Method three
