31
QuizMultiple Choice

Cumulative Exam — Cumulative exam

Question 31 • LHS Physical Science

How does a machine, such as a ramp, help make work easier?

Answer
A
A machine can help decrease the input force and the output force.
B
A machine can help increase the input force and the output force.
C
A machine can help increase the input force and decrease the output force.
D
A machine can help decrease the input force and increase the output force.

Explanation

A ramp lets you move an object with less input force by spreading the work over a longer distance. In that sense, the machine increases the output force relative to the input force, so the correct choice is “decrease the input force and increase the output force.”

AI-written and checked against the verified answer.

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