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Simple Machines as Force Changers
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Grade Level
Grade 3
3.11 Simple Machines as Force Changers
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Yasmin's group at the weather station records observations on a purple chart.Movers push a dolly up a ramp into a truck.Which explanation best tells why the ramp into a truck is useful?
A
The ramp shortens the path so the load needs less planning.
B
The ramp reduces the force needed to raise the load, but the path is longer.
C
The ramp removes the need to control the load.
D
The ramp changes the material of the truck bed.
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