Question

which of the following statements about waves is false?
○ sound can travel through a vacuum.
○ waves with higher amplitude have more energy.
○ waves with higher frequencies have more energy.
○ sunlight travels through space and transfers energy to the planets in the solar system.

Explanation:

• Sound is a mechanical wave that requires a medium (like air, water, or solids) to travel; it cannot propagate through a vacuum (empty space with no particles to vibrate).
• For waves, higher amplitude corresponds to more energy, and for electromagnetic waves, higher frequency also means more energy. Sunlight is electromagnetic radiation, which travels through space and transfers energy to solar system planets, so these statements are true.

Answer:

A. Sound can travel through a vacuum.