What are mechanical waves?

Mechanical waves are like ripples in water, but they can travel through things like ropes, air, or even your body!

Imagine you're holding a jump rope with a friend. When one of you jumps up and down, the rope moves in waves, up, down, up, down. That’s how mechanical waves work: something shakes or moves, and that movement travels through a medium, which is just a fancy word for the stuff it's moving through, like water, air, or even your arms!

Think of a slinky! If you push one end of a slinky, the coils squish together and then stretch apart, this motion moves from one end to the other. That’s exactly what happens with mechanical waves: each part of the medium takes turns moving, passing the wave along.

You can feel mechanical waves every day! When you speak, your voice makes sound waves, which are mechanical waves traveling through air. Your friend hears them because their ears catch those tiny pushes and pulls in the air, just like feeling a slinky move under your hand!