Question

which is the best example of how electromagnetic energy is used?
○ a pot of boiling water on a gas stove
○ a patient receiving an x - ray in a hospital
○ a car burning gasoline to power the engine
○ a car of a roller coaster moving quickly down a slope

Explanation:

To determine the best example of electromagnetic energy use, we analyze each option:

• A gas stove uses chemical energy (from gas) to heat water, not electromagnetic.
• X - rays are a form of electromagnetic radiation, so a patient receiving an X - ray uses electromagnetic energy.
• A car burning gasoline uses chemical energy (from fuel) for engine power.
• A roller coaster moving down a slope involves gravitational potential energy converting to kinetic energy.

Answer:

B. a patient receiving an X - ray in a hospital