Human Body Mechanics Quiz

What is the function of the effort in a lever?

• To provide resistance

• To act as a pivot

• To apply force

• To balance the load

What is the main advantage of using a first-class lever?

• It can change the direction of the force

• It reduces the load

• It increases the load

• It eliminates the need for a fulcrum

A first-class lever means that...

Which of the following is an example of a second class lever in the human body?

• Elbow joint

• Knee joint

• Ankle joint

• Shoulder joint

What is a common example of a third-class lever in human movement?

• Bicep curl

• Seesaw

• Crowbar

• Scissors

In a third-class lever, what is the role of the lever arm?

• To support the load

• To apply the effort

• To balance the fulcrum

• To connect the fulcrum and load

What type of lever would a calf raise be?

Label the aspects of the lever involved in a calf raise

FLE?

• 123

• 231

• 321

• 213

What is the load in a bicep curl when considering it as a third class lever?

• The elbow

• The bicep muscle

• The weight

• The shoulder