Light Waves & Optics
📋 What it is
Light is a wave too — it reflects, refracts and splits into colours just like other waves.
🗣️ Coach says
Light obeys the same wave rules as sound, plus a few of its own. It reflects off mirrors, refracts (bends) through lenses and water, and splits into a rainbow through a prism. Because light’s wavelength is tiny, these effects can look sharp and colourful.
🧠 Memory hook
Light = a wave: it reflects (mirrors), refracts (lenses), and splits into colours (prisms).
😂 Giggle
What did the vibrating string say?
"I'm just going through a phase!"
😲 Whoa!
A rainbow is a giant circle of refracted light — from the ground you only see the top arc, but from a plane you can sometimes see the full ring.
✅ Quick check: Name one wave behaviour that light shares with sound.
Say your answer out loud first — then reveal.
Reflection (or refraction) — light bounces off mirrors and bends through lenses, just as sound echoes and bends.
Light and sound share core wave behaviours.
🧪 Try it! (2 minutes)
Hold a glass of water in sunlight near white paper and catch the little rainbow — refraction splitting light.