Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 769 · 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 Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
3. 3.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) phone app (d) actuator
4. 4.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
5. 5.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) carries the data (d) acts on a command
6. 6.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
7. 7.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
8. 8.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
9. 9.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) sensor (d) phone app
10. 10.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a wind-up clock (d) an app-controlled bulb
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
12. 12.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
15. 15.What does the microcontroller do? (a) measures the real world (b) shows data to you (c) stores data online (d) reads values, decides
16. 16.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a wind-up clock
19. 19.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a pencil sharpener (d) a paper calendar
22. 22.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a battery torch
23. 23.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it
25. 25.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a fitness band with app
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
29. 29.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a fitness band with app
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a plain wall switch (d) an app-controlled bulb
31. 31.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) phone app (d) actuator
32. 32.🌐 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
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
34. 34.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
36. 36.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) microcontroller (d) phone app
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
39. 39.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) an app-controlled bulb (d) a paper calendar
40. 40.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device

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