3. which statement is not true of simple machines?
a they can change the direction in which you apply a force
b they can change the amount of force you exert.
cthey can change the amount of work done on an object.
d. they can change the distance over which you apply a force

C They can change the amount of work done on an object. Controlling amount of work done would be down to user / more complex machines.

Explanation:

Simple machines help direct, increase, and affect distance force is applied.

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