1) Simple machines make work easier for people by changing the amount
of force needed to move an object.
The unit for force is Newtons, and it can be measured with a tool
called a spring scale.
What can be inferred from these quotes from the text?
A)
A pulley increases the number of Newtons needed to
lift an object.
B)
Inclined planes and spring scales can only be used
with spring scales.
)
Spring scales can also be used to find the volumes of
inclined planes and pulleys.
D)
The number of Newtons needed to lift an object is
less with a pulley than without it.
Answers: 3
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1) Simple machines make work easier for people by changing the amount
of force needed to move an ob...
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