Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 736 · 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 smart energy meter (b) a plain table fan (c) a battery torch (d) a pencil sharpener
2. 2.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi weather station
3. 3.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) sensor (d) phone app
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
5. 5.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) phone app (d) Wi-Fi
6. 6.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
7. 7.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi weather station (d) a plain wall switch
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a plain wall switch
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
10. 10.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a battery torch
11. 11.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
12. 12.🔢 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
13. 13.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) carries the data (d) acts on a command
14. 14.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) phone app (d) Wi-Fi
15. 15.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi smart plug
17. 17.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) phone app (c) cloud server (d) microcontroller
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
20. 20.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi smart plug
21. 21.What does the cloud server do? (a) stores data online (b) acts on a command (c) reads values, decides (d) carries the data
22. 22.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) microcontroller (d) cloud server
23. 23.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🔢 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
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it
26. 26.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
28. 28.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi weather station
29. 29.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a pencil sharpener (d) a plain table fan
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
31. 31.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi doorbell camera (d) a wind-up clock
32. 32.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a plain table fan (d) an app-controlled bulb
33. 33.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) actuator (d) sensor
34. 34.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) acts on a command (d) shows data to you
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
40. 40.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device

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