2.1.3 Third-class levers

• The components of a third-class lever are fulcrum, effort, and load
• What is the mechanical advantage of a third-class lever?

  Less than 1
• Third-class levers allow for greater range of motion and speed of movement compared to first-class and second-class levers.


  True
• In a third-class lever, the movement direction is the same as the effort
• What is a third-class lever?

  Effort between fulcrum and load
• The effort in a third-class lever is applied between the fulcrum and the load.

  True
• Examples of third-class levers in sports include bicep curls and forearm extensions
• Where is the effort positioned in a third-class lever?

  Between fulcrum and load
• Why are third-class levers less mechanically efficient than first-class or second-class levers?

  Mechanical advantage is less than 1
• The effort in a third-class lever is applied between the fulcrum and the load.


  True
• In a third-class lever, the load is the resistance or weight being moved
• What is the mechanical advantage of a third-class lever?

  Less than 1
• In a third-class lever, the effort is applied between the fulcrum and the load.

  True
• Match the component of a third-class lever with its position:

  Fulcrum ↔️ One end of the lever

  Effort ↔️ Between fulcrum and load

  Load ↔️ The resistance being moved
• Where is the effort positioned in a third-class lever?

  Between fulcrum and load
• What is the arrangement of a third-class lever?

  Effort between Fulcrum and Load
• Third-class levers allow for a high range of motion.

  True
• A third-class lever is a lever system where the effort is applied between the fulcrum and the load.
• Where is the effort applied in a third-class lever?

  Between Fulcrum and Load
• Match the components of a third-class lever with their positions:

  Fulcrum ↔️ One end of the lever

  Effort ↔️ Between Fulcrum and Load

  Load ↔️ The resistance or weight
• What is the mechanical advantage of a third-class lever?

  Less than 1
• What does it mean for the mechanical advantage of a third-class lever to be less than 1?

  Effort > Load
• In sports, what does a third-class lever enable?

  Greater range of motion and speed
• First-class levers balance force and movement, while second-class levers maximize force output.


  True
• What are the advantages of a third-class lever compared to first-class and second-class levers?

  Greater range of motion and speed
• Arrange the components of a third-class lever in their correct order from one end to the other.

  1️⃣ Fulcrum

  2️⃣ Effort

  3️⃣ Load
• What is the position of the fulcrum in a third-class lever?

  One end of the lever
• The effort in a third-class lever is located between the fulcrum and the load.


  True
• Examples of third-class levers include bicep curls and forearm extensions
• What is the key distinguishing feature of a third-class lever compared to other lever types?

  Effort between fulcrum and load
• The mechanical advantage of a third-class lever is always less than 1.

  True
• In a third-class lever, the effort is positioned between the fulcrum and the load
• The mechanical advantage of a third-class lever is less than 1
• What is the speed of movement in a third-class lever?

  High
• Where is the fulcrum located in a third-class lever?

  One end of the lever
• The key distinguishing feature of a third-class lever is the effort being applied between the fulcrum and the load.


  True
• What is the position of the effort in a third-class lever?

  Between Fulcrum and Load
• Third-class levers sacrifice mechanical advantage for greater range of motion and speed.

  True
• Third-class levers have the lowest mechanical advantage compared to first-class and second-class levers.
• In a tennis forehand swing, what acts as the fulcrum in a third-class lever?

  Wrist