Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 238 · 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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
2. 2.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a Wi-Fi smart plug (d) a fitness band with app
4. 4.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a wind-up clock
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
6. 6.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a battery torch
7. 7.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
9. 9.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a battery torch
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
11. 11.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
13. 13.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a plain table fan (d) a paper calendar
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
15. 15.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
16. 16.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
17. 17.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
18. 18.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) shows data to you
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
22. 22.🌐 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
23. 23.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a smart energy meter (d) a battery torch
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
27. 27.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
28. 28.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a battery torch (d) a plain wall switch
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
30. 30.What does the phone app do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) acts on a command
31. 31.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi weather station
32. 32.What does the sensor do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) an app-controlled bulb (d) a wind-up clock
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
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 weather station
36. 36.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) sensor (d) microcontroller
37. 37.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
39. 39.🌐 In an IoT system, which part carries the data? (a) phone app (b) microcontroller (c) actuator (d) Wi-Fi
40. 40.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device

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