Question

1. identify what kinds of waves need a medium to transfer their energy? what kinds of waves dont need a medium to transfer their energy?

Explanation:

Mechanical waves, like sound waves or water waves, rely on particles of a medium (solid, liquid, or gas) to transfer energy. Electromagnetic waves, such as light or radio waves, can travel through a vacuum (no medium) as they consist of oscillating electric and magnetic fields.

Answer:

Mechanical waves need a medium to transfer energy. Electromagnetic waves don't need a medium to transfer energy.