Which of the following is NOT true about simple machines?

Question

Which of the following is NOT true about simple machines? — Exam MCQ

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D. They reduce total work done in all cases — The correct choice is They reduce total work done in all cases. It follows from the relevant Newtonian mechanics, motion, work, energy, power or simple-machine relationship.

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A. They make tasks more convenient

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B. They can reduce the effort required

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C. They can change the direction of force

Which of the following is NOT true about simple machines?

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