Levers 2.1 + 2.1.2 Flashcards
1
Q
What is the fulcrum
A
a fixed pivot point. middle of see saw
2
Q
what is the effort
A
the source of energy like a muscle
3
Q
what is the load
A
the resistance to be moved like a weight
4
Q
how many types of lever are there
A
3
5
Q
what is the way to remember them
A
1 2 3 F L E
The f,l,e shows which part is in the middle for each type
6
Q
what is the load arm
A
the distance from load to fulcrum
7
Q
what is the effort arm
A
the distance from effort to fulcrum
8
Q
which types are mechanical advantages
A
1,2
9
Q
why is it a mechanical advantage
A
the greater the effort arm in comparison to the resistance arm, the greater the mechanical advantage
10
Q
what are mechanical disadvantages
A
the smaller the effort arm in comparison to the load arm the more of a mech disadv.
