Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 617 · 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 sensor do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
2. 2.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) an app-controlled bulb (d) a wind-up clock
3. 3.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
5. 5.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
6. 6.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) the app shows it
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
9. 9.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
12. 12.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) cloud server (d) microcontroller
13. 13.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔢 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 sensor measures (c) the board reads it (d) the app shows it
16. 16.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a paper calendar (d) a Wi-Fi smart plug
17. 17.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
19. 19.🔢 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
20. 20.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi weather station (d) a wind-up clock
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
22. 22.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) phone app (d) microcontroller
23. 23.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
24. 24.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) stores data online
25. 25.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a paper calendar
26. 26.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
27. 27.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) an app-controlled bulb
28. 28.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
29. 29.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) an app-controlled bulb (d) a paper calendar
30. 30.Which of these is an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a plain table fan (d) a battery torch
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
32. 32.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) actuator (d) microcontroller
34. 34.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a wind-up clock (d) a smart energy meter
35. 35.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) microcontroller (d) cloud server
36. 36.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) actuator (d) Wi-Fi
37. 37.What does the cloud server do? (a) stores data online (b) shows data to you (c) reads values, decides (d) measures the real world
38. 38.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi smart plug (d) a wind-up clock
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
40. 40.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device

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