Soc 20 Levers Flashcards
What is 🔼
Fulcrum
What does ⬜️ represent
Load
What does ⬆️ represent
Effort
Describe the distribution of a 1st class lever
The fulcrum is in the middle
Describe the distribution of a 2nd class lever
Load is in the middlw
describe the distribution of a 3rd class lever
The effort is in the middle
What is the load
Usually body weight or the weight/mass youre moving
What is the effort
The muscle primarily beung used to move the load
What lever is extension at the elbow and explain why
1st class lever because the fulcrum(elbow) is in between the load(hands) and the effort(tricep)
What class of lever always has a mechanical disadvantage and why
3rd class lever because effort arm is always shorter than the load arm
Describe a medhanical advantage
Where the effort arm is greater than the load arm
Give an example of a first class lever
Extension at the elbow
Give an example of a second class lever
Ankle movement
Give an example of a third class lever
Flexion at the elbow