Question

2.1.2 quiz: types of energy

question 3 of 10

which option lists a form of potential energy followed by a form of kinetic energy?

a. gravitational energy | elastic energy

b. electromagnetic energy | electrical energy

c. magnetic energy | electromagnetic energy

d. sound energy | nuclear energy

Explanation:

1. Recall the definitions: Potential energy is stored energy (e.g., gravitational, elastic, magnetic, nuclear, electromagnetic in some cases). Kinetic energy is energy of motion (e.g., electrical, sound, electromagnetic in motion - like light is electromagnetic but electrical energy is due to moving charges).
2. Analyze Option A: Gravitational energy (potential) and elastic energy (potential) – both potential, so A is wrong.
3. Analyze Option B: Electromagnetic energy can be potential (stored in fields) and electrical energy is kinetic (due to moving electrons), so this fits.
4. Analyze Option C: Magnetic energy (potential, stored in magnetic fields) and electromagnetic energy – electromagnetic energy can be kinetic (like light) but magnetic is part of electromagnetic, and this pairing is less clear than B. Also, magnetic energy is a type of electromagnetic potential, and electromagnetic energy as a whole isn't purely kinetic here.
5. Analyze Option D: Sound energy (kinetic, due to vibrating particles) and nuclear energy (potential, stored in atomic nuclei) – order is wrong (kinetic then potential), so D is wrong.

Answer:

B. Electromagnetic energy | electrical energy