Levers Flashcards
1
Q
what do levers consist of (3)
A
load
effort
fulcrum
2
Q
what is the fulcrum
A
a fixed pivot point
3
Q
what are the 3 types of lever systems
A
1 - fulcrum in middle
2 - load in the middle
3 - effort in the middle
4
Q
what are the arrows of effort and load in each system
A
Load is always downwards
Effort is down on 1st and UP 2 + 3.
5
Q
What is the pyramid for mechanical advantage equation
A
load
mechanical adv * effort
6
Q
What are examples for each lever class
A
1st - crowbar
2nd - wheelbarrow
3rd - fishing rod
