Directions: A student investigates the relationship between gravitational potential energy and kinetic energy by sliding a smooth ice cube along the inside of a large punch bowl. The diagram below shows five positions of the cube in the bowl. Use this diagram to answer any questions that follow.
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At which position is the kinetic energy of the ice cube the greatest?
A.
II
B.
III
C.
IV
D.
V
The correct answer is:
D. V
Position V is where the ice cube is at the bottom of the bowl and has the highest speed, therefore the highest kinetic energy.