1140
QuizMultiple Choice

Modeling with Rational Functions — Unit test

Question 1140 • LJISD-TX-Algebra II-B-CR

The elbow is considered a third class lever because __________.

Answer
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

Explanation

In a third-class lever, the effort is applied between the fulcrum and the load. For the arm, the elbow is the fulcrum, the biceps applies the effort nearby, and the load is held farther away in the hand. Therefore, the effort is closer to the fulcrum than the load, matching “the effort is applied closer to the fulcrum than the load.”

AI-written and checked against the verified answer.

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