Q17. Explain in your own words what longitudinal waves are. Include examples.

Electromagnetic and Mechanical Waves

In the video the string was a medium for our transverse waves and the particles being compressed was the medium for the longitudinal waves. Not all waves require a medium to travel

through

Electromagnetic Waves may travel (or propagate through a medium, but do not require one they can travel without a medium eg through a vacuum) Lightwaves are electromagnetic

waves and therefore do not require a medium to travel Other examples of electromagnetic waves include radio waves, microwaves, and X-Rays

Mechanical Waves require a medium to travel through Sound waves are mechanical waves and require a medium to travel through Other examples of mechanical waves are ocean waves

and seismic waves generated by earthquakes