Multiple choice

When a body is lifted by hand, what type of lever is performed by the hand?

  1. First type of lever

  2. Second type of lever

  3. Third type of lever

  4. Simple machine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When lifting by hand, the arm functions as a second-class lever: the elbow joint is the fulcrum, the effort (muscle force) is applied between the fulcrum and the load (weight in hand). In a first-class lever, the fulcrum is between effort and load (like a seesaw). In a third-class lever, the load is between fulcrum and effort (like tweezers).

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