Which tin can will roll down an incline in the shortest time, one filled with water or one filled with ice? (Hint: water 'slides' inside the can.)
A) with water
B) with ice
C) both the same
D) need more information
Question 2
Stand a broom upright on the end of its pole and let it topple to the floor. Repeat, but with the bristles end on the floor. The faster fall will be the broom standing on its
A) pole-end.
B) bristles-end.
C) the same either way.