Question

During an energy transformation, the total amount of energy stays the same. So, when one

type of energy decreases, at least one other type of energy will increase.
Read the passage about the next part of the ride. Think about how kinetic energy, chemical
potential energy, and thermal energy changed.
Ellen biked in a straight line along the street. Then, to avoid the sun, she moved over to
ride under the shade of some trees. But as she pedaled faster and sped up, Ellen started
to feel hot even in the shade.
Decide how each type of energy changed.
Chemical potential energy stored in Ellen's
muscle cells
Ellen's kinetic energy
Ellen's thermal energy
Increased
Stayed the
same
Decreased

Answer 1

Based on the passage, the changes in energy can be described as follows:

Chemical potential energy stored in Ellen's muscle cells: Decreased
Ellen's kinetic energy: Increased
Ellen's thermal energy: Increased

As Ellen pedaled faster and sped up, her increased kinetic energy resulted in an increase in thermal energy, causing her to feel hot even in the shade.