Which type of energy transformation does not describe potential energy being changed into kinetic energy? a) compressing a spring. b) a ball falling off a shelf. c) a bike coasting down a hill. d) releasing a stretched rubber band.

The answer is A.compressing a spring. because as a spring is compressed the spring is storing energy. When the spring is released it will uncoil and expand. The type of energy coversion that is taking place when it is being coiled is kinetic to potential.

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )