P1: Levers

Question 1

What are the 4 components of a Lever?

Answer 1

• Lever (Bone)
• Fulcrum (Joint)
• Effort (Force from a muscle)
• Load (Weight of body/object)

Question 2

What is the order of a 1st Class Lever?

Answer 2

1st Class Lever
- Effort (Down), Fulcrum, Load

Question 3

What is an example of a 1st Class Lever?

Answer 3

An example of a 1st Class Lever is the Neck, when performing a header in football

Question 4

What is the order of a 2nd Class Lever?

Answer 4

2nd Class Lever
- Effort (Up), Load, Fulcrum

Question 5

What is an example of a 2nd Class Lever?

Answer 5

An example of a 2nd Class Lever is the Ankle, when performing a jump shot in basketball

Question 6

What is the order of a 3rd Class Lever?

Answer 6

3rd Class Lever
- Fulcrum, Effort (Up), Load

Question 7

What is an example of a 3rd Class Lever?

Answer 7

An example of a 3rd Class Lever is the Elbow, when performing a Bicep Curl, or an Overhead Throw

Question 8

Which Lever has a Mechanical Advantage?

Answer 8

A 2nd Class Lever has a Mechanical Advantage

Question 9

Which Lever has a Mechanical Disadvantage?

Answer 9

A 3rd Class Lever has a Mechanical Disadvantage

Question 10

What is the definition of a Mechanical Advantage?

Answer 10

Mechanical Advantage - A Levers ability to move a large load with small effort