Soc20 (levers)

Question 1

Way to remember

Answer 1

FLE123

Question 2

First Class + example

Answer 2

• fulcrum in the middle between load and effort

Eg. Where muscles (effort) meet (fulcrum) the cranium (load)

Question 3

Second Class + example

Answer 3

• where the load is the middle

Eg. The ball off the foot (fulcrum) with the heel (load) and the effort (gastrocnemius) for plantar flexion

Question 4

Third Class

Answer 4

• effort in the middle

Eg. Bicep curl where the weight (load) is being lifted by the bicep muscles (effort) with the fulcrum at the elbow

Question 5

How these apply to the body (distance)

Answer 5

For first and second class:
Small effort = large load

For third class
Large effort= small load due to the distance from fulcrum to load

Question 6

Lever Definition

Answer 6

• system of muscles working together to help you move

- muscles pull on bones for movement

Question 7

How does a lever work?

Answer 7

• rotates around the axis
• fulcrum is where it rotates
• load is the force applied
• effort is the force from your muscles