Levers

Question 1

Define EFFORT ARM and DESCRIBE the relationship

Answer 1

• Distance between the Effort and Fulcrum
• The longer the Effort Arm the greater the Mechanical Advantage

Question 2

Define RESISTANCE ARM and DESCRIBE the relationship

Answer 2

• The distance between the Load and Fulcrum
• The shorter the Resistance Arm the greater the Mechanical Advantage

Question 3

Describe the 1st CLASS LEVER and give a SPORTING EXAMPLE

Answer 3

• Fulcrum is in-between Load and Effort ( LFE)
• Throw-in in Football

Question 4

Describe the 2nd CLASS LEVER and give a SPORTING EXAMPLE

Answer 4

• Load is in-between Fulcrum and Effort (FLE)
• Plantar Flexion in running actions

Question 5

Describe the 3rd CLASS LEVER and give a SPORTING EXAMPLE

Answer 5

• Effort is in-between Fulcrum and Load (FEL)
• Concentric phase of Bicep Curl

Question 6

What is the equation for MECHANICAL ADVANTAGE?

Answer 6

MA= EA/RA