P3 - Balanced Moments And Levers Flashcards
1
Q
What idea do levers work based on?
A
By using the idea of balanced moments to make it easier for us to do work.
2
Q
How do levers work?
A
By increasing the distance at which the force is applied - meaning less force is needed to get the same moment.
3
Q
What are levers known as?
A
Force multipliers.
4
Q
When are levers used as force multipliers? [3]
A
1) long sticks or bars (seesaw)
2) wheelbarrow
3) scissors
5
Q
What happens if the anti-clockwise moment is equal to the clockwise moment?
A
The object won’t turn.
