Energy and light

📖 Ders ──▶ 🎯 Quiz — çeviriyi seç ──▶ ✅ Ders tamam

Energy is not created or destroyed — it only changes costume: chemical (fuel) → thermal → mechanical (engine). Light is an electromagnetic wave: color depends on wavelength, the rainbow splits white light into the spectrum. Light speed: 300,000 km/s — sunlight takes 8 minutes to reach us.

●Food energy: kilocalories — same physics as joules
●Redshift showed the universe expands
●LED saves ~90% energy vs the incandescent bulb

🌈 Fraunhofer of Munich split light into a spectrum 200 years ago — letting us learn what stars are made of without flying there.

🎯

Kendini dene!

Konuyu antrenörle pekiştir — ders sonrası gibi

Quiz — çeviriyi seç → 🖨 Çalışma sayfası

← Önceki