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Lekce 2
Electricity and circuits
📖 Lekce
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🎯 Kvíz — vyber překlad
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✅ Lekce hotová
Electricity is a flow of tiny particles — electrons. Current only flows in a closed circuit: battery → wire → bulb → back. Break it — the light goes out.
⚠ Water conducts electricity — no hairdryer near the bath! A socket is not a toy.
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Gravitace
🧲
Magnetismus
🛞
Tření
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Odpor vzduchu
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Hmotnost
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Tlak & tah