Sound Basics & Vibration
📋 What it is
Sound is made by vibrations that travel through a material as a wave to your ears.
🗣️ Coach says
Every sound starts with something vibrating — a string, a speaker, your vocal cords. Those vibrations push on the air (or water, or a solid), passing the wiggle along as a wave until it reaches your ear. No vibration, no sound.
🧠 Memory hook
Vibration → travels as a wave through stuff → your ear hears it. No vibration, no sound.
😂 Giggle
Why did the wave say hello?
Because it wanted to make a good frequency!
😲 Whoa!
In space no one can hear an explosion — there’s no air to carry the vibration, so sound has nothing to travel through.
✅ Quick check: What has to happen for any sound to be made?
Say your answer out loud first — then reveal.
Something must vibrate — the vibration travels as a wave to your ear.
Sound originates from vibration and needs a medium to travel.
🧪 Try it! (2 minutes)
Rest your fingers on your throat and hum — feel the vibration that becomes the sound.