Question

practice it!
which of the following are accurate examples of forms of energy?
a lawn mower uses mechanical energy.
a battery stores chemical energy.
the sun gives off electrical energy.
a skateboard stores chemical energy.
a hot cup of coffee contains thermal energy.

Explanation:

• A lawn mower uses mechanical energy as it involves moving parts and physical work.
• A battery stores chemical energy which is converted to electrical energy when in use.
• The Sun gives off electromagnetic (solar) energy, not electrical energy.
• A skateboard does not store chemical energy; it may have mechanical (kinetic or potential) energy when in motion or at rest on a slope.
• A hot cup of coffee contains thermal energy due to its temperature.

Answer:

A. A lawn mower uses mechanical energy.
B. A battery stores chemical energy.
E. A hot cup of coffee contains thermal energy.