Lever systems

Question 1

what’s is the easy way to rember levers

Answer 1

123,FLE

Question 2

What is a first class lever

Answer 2

A first class lever has its fulcrum(joint)lying in between the effort (muscle) and load (what needs moving) e.g the neck when raising the head

Question 3

What is a second class lever

Answer 3

A second class lever has its fulcrum at one end and the effort at the other, the load in in the middle
e.g

Question 4

What is a third class lever

Answer 4

A third class lever has its fulcrum at one end and its load at the other the effort is in the middle
e.g bicep curl

Question 5

what is the formulae for mechanical advantage

Answer 5

mechanical advantage =effort/load
only used for 1st and 3rd class

Question 6

what are the 2 questions to ask for 1st and 2nd lever

Answer 6

1.is it elbow extension or neck

2.is it ankle