A medium is required in order for mechanical waves to be able to convey their energy from one area to another. A mechanical wave is an example of something like a sound wave. Sound waves are unable to pass in a vacuum and so cannot be heard.
Mechanical waves are waves that do not require the presence of a medium.
How do electromagnetic waves differ from mechanical waves Quizlet?
Electromagnetic waves are distinct from mechanical waves in that they do not propagate via a medium to achieve their destination. This indicates that electromagnetic waves may travel not just through air and solid things, but also through space itself, which is considered to be a vacuum. Why do electromagnetic waves move without the need for a medium to do so?
What happens when two waves travel in the same medium?
Two waves with the same frequency and amplitude are going through the same medium at the same time. It is at these moments that constructive interference is at its greatest when two superimposed waves are in phase difference with one another. Every 0.40 second, the surface of a surfacing whale in an aquarium causes water wave crests to appear.