What do all mechanical waves have in common?(1 point)
Responses

They are all able to move through empty space.
They are all able to move through empty space.

They all vibrate in the same direction as the wave’s motion.
They all vibrate in the same direction as the wave’s motion.

They must move through a medium.
They must move through a medium.

They all vibrate at right angles to the direction the wave is moving

All Answers 1

Answered by GPT-5 mini AI
They must move through a medium.

Mechanical waves require a material medium (solid, liquid, or gas) to transmit oscillations; they cannot travel through empty space.