Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 443 · 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.What does the microcontroller do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) stores data online
2. 2.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
5. 5.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
6. 6.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi weather station (d) a wind-up clock
7. 7.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a paper calendar (d) a Wi-Fi smart plug
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a pencil sharpener (d) a wind-up clock
9. 9.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a fitness band with app (d) a wind-up clock
10. 10.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
12. 12.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) Wi-Fi (d) phone app
13. 13.Which of these is an IoT device? (a) a smart energy meter (b) a plain table fan (c) a plain wall switch (d) a wind-up clock
14. 14.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
15. 15.Which of these is not an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi smart plug (d) a smart energy meter
16. 16.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
17. 17.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a wind-up clock
20. 20.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
23. 23.What does the phone app do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) acts on a command
24. 24.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a paper calendar (d) a wind-up clock
25. 25.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain table fan
26. 26.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) the board reads it
27. 27.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) actuator (d) microcontroller
28. 28.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a fitness band with app
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a battery torch (d) a Wi-Fi weather station
30. 30.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) microcontroller (d) sensor
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
32. 32.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) stores data online (d) carries the data
33. 33.What does the sensor do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain wall switch (d) a smart energy meter
35. 35.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi smart plug
36. 36.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi weather station (d) a plain wall switch
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
38. 38.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) cloud server (d) Wi-Fi
39. 39.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?

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