Sound Science & Properties
📋 What it is
Sound is a vibration travelling as waves; its pitch (high/low), volume (loud/soft) and timbre (tone colour) are measurable properties.
🗣️ Coach says
Sound is really VIBRATION moving through the air as waves. Fast vibrations = high PITCH; big waves = loud VOLUME; and the mix of extra tones gives each sound its TIMBRE (why a piano and a flute playing the same note still sound different). These are real, measurable properties.
🧠 Memory hook
Sound = vibration waves. Pitch (fast=high) · Volume (big=loud) · Timbre (the "tone colour").
😂 Giggle
What did the ocean wave say to the forest breeze?
"Let's mix things up!"
😲 Whoa!
Sound can't travel through empty space — in a total vacuum, there's nothing to vibrate, so space is truly silent.
✅ Quick check: What actually IS sound, physically?
Say your answer out loud first — then reveal.
A vibration that travels through the air (or another medium) as waves.
Sound is mechanical wave vibration; it needs a medium to travel through.
🧪 Try it! (2 minutes)
Hum with a finger lightly on your throat — feel the vibration? That buzzing IS the sound being made.