levers Flashcards
1
Q
What are the three key components of all levers?
A
Axis Motive Force (Force) Resistive Force (Resistance)
2
Q
What is an Axis in a Lever?
A
Where lever pivots
3
Q
What is an motion force in a Lever?
A
What is causing the movement (eg a propulsive force)
4
Q
What is an Resistive force in a Lever?
A
What is preventing the movement
5
Q
what are the two main functions of levers?
A
increase force
Generate speed
6
Q
What is a first class lever? Give an example
A
Axis is located in between motive force and resistive force
Seen in seesaws
7
Q
What is a second class lever? Give an example
A
Second-class levers have the load between the effort and the fulcrum.
seen in wheel burrow
8
Q
What is a third class lever? Give an example
A
In a third-class lever, the input force is in between the output force and the fulcrum
seen in elbow joint lifting a dumbell
