Levers and Moments Flashcards
1
Q
What is a lever?
A
A lever is a simple mechanism.
2
Q
What are the three types of levers?
A
Class 1, 2 and 3
3
Q
What is the layout in a Class 1 lever?
A
The load and effort are on opposite sides of the fulcrum.
4
Q
What is the layout in a Class 2 lever?
A
The load and effort are on the same side as the fulcrum sharing the weight with the load, with the load closer to the fulcrum.
5
Q
What is the layout in a Class 3 lever?
A
The effort and load are both on the same side as the fulcrum/pivot but the effort is closer to the load.
6
Q
What is the equation for moments?
A
Moment (Nm) = Force (N) x Distance (m)
7
Q
When working out the moment what do you need to make sure you do?
A
You must work out both moments and then compare them.
