Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 916 · 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) stores data online (b) carries the data (c) shows data to you (d) reads values, decides
2. 2.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a plain table fan (d) a wind-up clock
5. 5.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
6. 6.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a battery torch (d) a plain wall switch
7. 7.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a fitness band with app
9. 9.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a battery torch (d) a Wi-Fi smart plug
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
11. 11.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
12. 12.What does the sensor do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) carries the data
13. 13.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a Wi-Fi weather station (d) an app-controlled bulb
15. 15.🔢 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
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
17. 17.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
19. 19.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) phone app (d) cloud server
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a battery torch (d) a Wi-Fi weather station
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
23. 23.🔢 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
24. 24.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a wind-up clock
25. 25.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) cloud server
26. 26.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
27. 27.🌐 In an IoT system, which part stores data online? (a) phone app (b) actuator (c) microcontroller (d) cloud server
28. 28.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) sensor (c) microcontroller (d) actuator
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
30. 30.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
32. 32.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) an app-controlled bulb (d) a battery torch
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
34. 34.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
37. 37.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a wind-up clock (d) a paper calendar
38. 38.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it

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