Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 431 · 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 of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a smart energy meter
2. 2.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a Wi-Fi smart plug
3. 3.What does the cloud server do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) stores data online
4. 4.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) Wi-Fi (c) sensor (d) actuator
5. 5.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
6. 6.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a plain wall switch (d) a plain table fan
7. 7.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a fitness band with app (d) a pencil sharpener
8. 8.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
9. 9.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🏠 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
11. 11.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
13. 13.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain wall switch
14. 14.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) Wi-Fi (d) phone app
15. 15.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a wind-up clock (d) an app-controlled bulb
16. 16.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a plain table fan (d) a Wi-Fi smart plug
17. 17.🔢 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 sensor measures (d) it is sent by Wi-Fi
18. 18.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a battery torch (d) a paper calendar
19. 19.What does the Wi-Fi link do? (a) acts on a command (b) shows data to you (c) carries the data (d) stores data online
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
22. 22.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
24. 24.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) phone app (d) Wi-Fi
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
26. 26.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a pencil sharpener
30. 30.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
31. 31.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a wind-up clock (d) a Wi-Fi weather station
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
33. 33.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🔢 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
35. 35.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
36. 36.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a plain table fan
37. 37.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi doorbell camera
38. 38.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
40. 40.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) an app-controlled bulb

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