Quiz on Lever Systems

What is a lever?

• A type of machine that generates electricity

• A flexible material used in construction

• A rigid bar that rotates around a pivot point

• A type of joint in the human body

In the human body, what acts as the lever?

• Muscles

• Bones

• Tendons

• Nerves

What serves as the fulcrum in a lever system?

• The joint

• The tendon

• The load

• The muscle

What is the role of muscles in the lever system?

• To provide resistance

• To connect bones

• To act as the fulcrum

• To apply force

Which class of lever has the fulcrum located between the effort and the load?

• Third class lever

• Fourth class lever

• Second class lever

• First class lever

In a first class lever, what is the arrangement of components?

• Effort - Load - Fulcrum

• Effort - Fulcrum - Load

• Load - Fulcrum - Effort

• Fulcrum - Load - Effort

What is the primary function of a lever?

• To store energy

• To reduce friction

• To change the direction of force

• To increase speed

What type of lever is characterized by the effort being between the fulcrum and the load?

• Third class lever

• Second class lever

• None of the above

• First class lever

Which of the following is NOT a component of a lever system?

• Effort

• Fulcrum

• Load

• Muscle fiber

What is the term for the resistance that a lever works against?

• Effort

• Fulcrum

• Torque

• Load