Question

when the amount of any type of energy changes, an energy transformation is happening. when one or more types of energy decrease, at least one other type of energy increases. this is because during energy transformations, energy is converted between different types. read the passage again and think about the energy transformation. keep in mind that muscle cells use chemical potential energy when they expand or contract to move parts of a persons body. ellen was training for a bike race. one afternoon, she grabbed her helmet and took her bike out to the street. she got on the bike and started to pedal, pushing hard to start moving forward. complete the sentence. when ellen started riding, ______ was converted into ______. chemical potential energy... kinetic energy kinetic energy... chemical potential energy

Explanation:

The passage states that muscle cells use chemical potential energy to move body parts. When Ellen pedals, her muscle cells use chemical potential energy, and the bike (and her) gains kinetic energy (energy of motion) as she starts moving forward. So chemical potential energy is converted to kinetic energy.

Answer:

A. chemical potential energy... kinetic energy