P2.3.4 - Turning forces Flashcards
1
Q
What is a pivot?
A
The point about which forces act to produce turning effects
2
Q
What is a moment?
A
The turning effect of a force
3
Q
How do you calculate the moment of a force?
A
Moment of a force = force x distance
4
Q
How can the moment of a force be increased?
A
- Increasing the size of the force
- Increasing the perpendicular distance from the pivot
5
Q
What is the principle of moments?
A
The sum of the clockwise moments about any point is equal to the sum of the anti-clockwise moments about any point
6
Q
What is a fulcrum?
A
Another name for a pivot
