How can Tina tell that electrical energy is flowing through a light bulb? A. She can read the words printed on the light bulb. B. She can see parts of the light bulb turning. C. She can feel radiant heat coming from the light bulb. D. She can hear the light bulb making music energy.

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy