Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 102 · 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.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) phone app (d) microcontroller
2. 2.What does the actuator do? (a) acts on a command (b) shows data to you (c) carries the data (d) measures the real world
3. 3.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi weather station (d) a plain table fan
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
5. 5.🔢 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
6. 6.Which of these is not an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi weather station
7. 7.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a fitness band with app (d) a battery torch
8. 8.🏠 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
9. 9.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a plain wall switch (d) a paper calendar
10. 10.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi smart plug
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
15. 15.Which of these is not an IoT device? (a) a fitness band with app (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi smart plug
16. 16.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
17. 17.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a plain table fan (d) a pencil sharpener
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
19. 19.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain wall switch
20. 20.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a plain table fan
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
22. 22.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a wind-up clock
23. 23.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) actuator (d) phone app
24. 24.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
25. 25.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain wall switch (d) a plain table fan
26. 26.Which of these is not an IoT device? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
27. 27.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a paper calendar (d) an app-controlled bulb
28. 28.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
30. 30.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a wind-up clock (d) a plain wall switch
31. 31.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a plain table fan (d) a smart energy meter
32. 32.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
34. 34.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
37. 37.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
40. 40.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a pencil sharpener (d) a smart energy meter

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