Levers

Question 1

What is a first class lever?

Answer 1

Where the fulcrum is in the middle

Question 2

What is the only example of a first class lever in the human body?

Answer 2

Tricep

Question 3

What is a second class lever?

Answer 3

Where the resistance is in the middle

Question 4

What is the only example of a second class lever in the human body?

Answer 4

Gastrocnemius

Question 5

What is a third class lever?

Answer 5

Where the effort is in the middle

Question 6

What muscles in the body are third class?

Answer 6

All other muscles are third class apart from gastrocnemius and Tricep

Question 7

What is mechanical advantage?

Answer 7

Where the effort arm is longer than the resistance arm

Question 8

What are the characteristics of mechanical advantage?

Answer 8

Can move large loads with little force
Short range of motion
Slower

Question 9

What is mechanical disadvantage?

Answer 9

Where the resistance arm is longer than the effort arm

Question 10

What are the characteristics of mechanical disadvantage?

Answer 10

Cannot move as heavy a load
Fast
Large range of movement