Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 721 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a battery torch (d) a Wi-Fi weather station
2. 2.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a smart energy meter
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
4. 4.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
5. 5.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
6. 6.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
7. 7.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) an app-controlled bulb (d) a smart energy meter
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
10. 10.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
11. 11.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a wind-up clock
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a fitness band with app (d) an app-controlled bulb
14. 14.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) carries the data (d) acts on a command
15. 15.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a wind-up clock (d) a fitness band with app
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
17. 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
19. 19.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) an app-controlled bulb (d) a battery torch
20. 20.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a Wi-Fi smart plug
21. 21.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) an app-controlled bulb (d) a plain table fan
23. 23.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a fitness band with app (d) a wind-up clock
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
26. 26.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
28. 28.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a battery torch (d) a Wi-Fi weather station
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
31. 31.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
32. 32.What does the actuator do? (a) shows data to you (b) stores data online (c) measures the real world (d) acts on a command
33. 33.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) sensor (d) microcontroller
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
37. 37.Which of these is an IoT device? (a) a fitness band with app (b) a battery torch (c) a plain table fan (d) a paper calendar
38. 38.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
39. 39.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a fitness band with app (d) a Wi-Fi weather station
40. 40.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) a smart energy meter

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