Question

the elbow is considered a third class lever because ____________. a. the effort is applied further from the fulcrum than the load b. the effort is applied closer to the fulcrum than the load c. the fulcrum is in the center of the lever d. the elbow is used to lift objects please select the best answer from the choices provided. a b c d

Explanation:

Third - class levers have the effort applied between the fulcrum and the load. This means the effort is closer to the fulcrum than the load. For example, in the elbow, the bicep (effort) is attached closer to the elbow joint (fulcrum) than the hand (load).

• Option A: In a third - class lever, the effort is not further from the fulcrum than the load.
• Option C: The fulcrum is in the center for first - class levers (e.g., seesaw), not for third - class levers.
• Option D: Just being used to lift objects is too general and not a characteristic of third - class levers.

Answer:

B. the effort is applied closer to the fulcrum than the load