Pallavi wants to find out whether the length of a ramp affects the for – McqOptions

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1.	Pallavi wants to find out whether the length of a ramp affects the force needed to move a wooden block up the ramp. She sets up the given experiment. What should she keep the same?
A.	The height of both the ramps
B.	The length of both the ramps
C.	deer?s, giraffes, cows
D.	Both (a) and (b)
Answer» B. The length of both the ramps

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