Levers Flashcards
1
Q
A lever is
A
A system that involves 3 things
2
Q
What’s the e
A
A force called the effort
3
Q
What’s the f
A
A pivoting point called the fulcrum
4
Q
What’s the l
A
An object to be moved called the load
5
Q
Purpose of a lever
A
Usually to make something easier to lift or move using small force to move larger objects
6
Q
Levers are split
A
Into 3 different types called there class
7
Q
Class 1
A
EFL
effort fulcrum load
Example : seesaw
8
Q
Class 2
A
FLE
fulcrum load effort
Example: wheelbarrow
9
Q
Class 3
A
LEF
fulcrum effort load
Example : barabaque tongs
10
Q
The position of the fulcrum
A
Dteerminds how easy it is to lift a load
11
Q
How it determines
A
If the effort is further away from the fulcrum then the load will be easier to lift
12
Q
If it’s harder to lift
A
If the fulcrum is closer to the effort it will be harder
