Question

Which of the following is a type of wave that does not need a medium though which to travel?

Equilibrium

Longitudinal

Amplitude

Transverse

Answer 1

but dont they have a medium? :P

Answer 2

A longitudinal wave causes compression of the medium, as you saw when a portion of the spring was squeezed together. Hence, in a longitudinal wave, the particles of matter in the medium move in a parallel direction to the motion of the wave.

In a transverse wave, each successive wave causes the medium to move up and down. Hence, in a transverse wave, the particles of matter in the medium move in a perpendicular direction to the motion of the wave. You saw these waves travelling at right angle compared to the rope.

Answer 3

Electromagnetic waves do not require a medium to travel through. I had just did that question.

Answer 4

Thanks boomboom :) but that is not a choice XD but its okay since I already got my answer (c) :D can u do me a favor and check my answer for a question? :)

Answer 5

In your own words, explain why longitudinal waves cannot travel in space.

My Answer: Longitudinal waves require a medium to travel, so they cannot travel in space.

Do you think this is a good answer or does it need more work? :)

Answer 6

Ok sorry gimme a minute im checking it.

Answer 7

Longitudinal waves like sound waves occur when particles oscillate in the same plane as the direction of travel of the wave.
They are basically pressure waves that move through some medium.
In a vacuum there are no particles to oscillate, nothing for a pressure wave to travel through.
So since all longitudinal wawes are pressure waves and pressure requires a medium then these waves cannot exist in the vacuum of space where there is no medium. Hope this helps.