Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 45 · 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 an IoT device? (a) a battery torch (b) a plain table fan (c) a Wi-Fi smart plug (d) a wind-up clock
2. 2.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
4. 4.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
5. 5.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
6. 6.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a wind-up clock (d) a fitness band with app
7. 7.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a smart energy meter (d) a plain wall switch
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a battery torch
9. 9.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi weather station (d) a paper calendar
10. 10.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a smart energy meter (d) a fitness band with app
11. 11.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a fitness band with app
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi doorbell camera
13. 13.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a fitness band with app
14. 14.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a battery torch
15. 15.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
16. 16.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a battery torch (d) a plain table fan
17. 17.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
19. 19.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a fitness band with app
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
22. 22.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
23. 23.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) phone app (d) microcontroller
24. 24.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
25. 25.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) microcontroller (d) Wi-Fi
26. 26.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
27. 27.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) sensor (d) phone app
28. 28.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) it is sent by Wi-Fi
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
32. 32.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
34. 34.What does the sensor do? (a) measures the real world (b) stores data online (c) reads values, decides (d) shows data to you
35. 35.Which of these is an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a paper calendar (d) a pencil sharpener
36. 36.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
37. 37.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a Wi-Fi smart plug
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
40. 40.What does the Wi-Fi link do? (a) acts on a command (b) stores data online (c) measures the real world (d) carries the data

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