9.
Which box would need the greatest force to move?
A.50 kg
B.60 kg
C.85 kg
D.150 kg
10. Why did a ball thrown to the air fall back to the ground?
A. Gravity caused the ball to fall.
B. Air caused the ball to fall on the ground.
C. Acceleration caused the ball to move fast.
D. The weight of the ball made it move faster.
11. A baseball and a sheet of paper are dropped at the same time from the same height. Which
will land first on the ground?
A. the baseball
C. the paper
B. both will land at the same time D. both will just float in the air
12. If the distance between two bodies is doubled, the gravitational force between them is
A. increased by 2
B. increased by 3
C. decreased by 2
D. decreased by 3​
Pa sagot po please