9
lesson pretestMultiple Choice

Pretest

Question 9 • Physical Science

Which is a result of using a machine?

Answer
A
The mechanical advantage makes the work output greater than the work input.
B
A large force can be exerted through a short distance to have a small force exerted through a long distance.
C
A large force can be exerted through a long distance to have a small force exerted through a short distance.
D
The machine can put out force without having any force applied to it.
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Which is a result of using a machine?