Tuesday, July 21, 2009

what have you learnt on moments?

I have learnt:
- Describe moment of force in terms of its turning effect and give everyday examples in terms of moments.
-Recall the relationship of force.
( moment= force x perpendicular distance from the pivot.)
-Apply the relationship between moment of a force and perpendicular distance from pivot to new situations or to solve new situations.

Moment of force is the turning of a force about a pivot.
SI unit for force: Nm (newton metre)
Everday examples:
See-saw, opening a door by its handle, turning a nut with a spanner.
There are 2 types of moments:
clockwise, anti-clockwise.