Question

Listen
Which type of wave needs a medium to travel?

Question 4 options:

mechanical wave


light wave


compression wave


l wave

Answer 1

The type of wave that needs a medium to travel is a **mechanical wave**. Mechanical waves, such as sound waves (which can be compression waves), require a medium (solid, liquid, or gas) to propagate. In contrast, light waves (electromagnetic waves) can travel through the vacuum of space and do not require a medium.