Quiz #5: A 1000 W heater runs 3 hours — how many kWh?
// WHAT YOU WILL LEARN
A 1000 W heater runs 3 hours: how many units? (3)
// LESSON NOTES
QUIZ 🔥 A 1000 W heater runs for 3 hours. How many kWh?
A) 3 kWh B) 30 kWh C) 300 kWh D) 3000 kWh
⏱️ 3 seconds… comment your answer before you read on! 👇
✅ Answer: A — 3 kWh!
1️⃣ Watts → kilowatts: 1000 W ÷ 1000 = 1 kW
2️⃣ Kilowatts × hours: 1 kW × 3 h = 3 kWh
💡 That's 3 units on your electricity bill (1 unit = 1 kWh).
A 10 W LED bulb needs 100 hours to use that same 1 kWh!
Rule: kW × hours = kWh.
Read the voiceover (transcript)
- Quick quiz! Can you do this math?
- A thousand watt heater, three hours. How many kilowatt hours? Comment your answer!
- It's A, three! A thousand watts is one kilowatt. One times three hours is three.
- That's three units on your bill! A ten watt LED needs a hundred hours for one.
- Kilowatts times hours!
- Next quiz: hex numbers! Follow for more!
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