Question

what type of wave requires a medium to transfer energy?

○ light

○ radio

○ electromagnetic

○ mechanical

Explanation:

To determine the type of wave that requires a medium to transfer energy, we analyze each option:

• Light waves are electromagnetic waves and can travel through a vacuum (no medium needed).
• Radio waves are a type of electromagnetic wave and also do not need a medium.
• Electromagnetic waves (like light and radio) can propagate in a vacuum, so they do not require a medium.
• Mechanical waves (e.g., sound waves, water waves) transfer energy by vibrating particles in a medium (solid, liquid, or gas) and cannot travel through a vacuum.

Answer:

mechanical