Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 401 · 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 is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a printed map (d) a hand fan
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
3. 3.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a plain wall switch (d) a paper calendar
4. 4.What does the cloud server do? (a) acts on a command (b) carries the data (c) measures the real world (d) stores data online
5. 5.What does the microcontroller do? (a) acts on a command (b) carries the data (c) measures the real world (d) reads values, decides
6. 6.🌐 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
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a battery torch (d) an app-controlled bulb
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔢 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) the app shows it (d) it is sent by Wi-Fi
11. 11.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) phone app (d) cloud server
13. 13.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) an app-controlled bulb (d) a pencil sharpener
14. 14.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a wind-up clock
15. 15.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a Wi-Fi smart plug
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
18. 18.What does the actuator do? (a) acts on a command (b) stores data online (c) carries the data (d) shows data to you
19. 19.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a plain wall switch (d) a fitness band with app
20. 20.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi smart plug (d) a paper calendar
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
22. 22.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) sensor (d) actuator
24. 24.What does the Wi-Fi link do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
26. 26.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
28. 28.What does the phone app do? (a) carries the data (b) reads values, decides (c) shows data to you (d) stores data online
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a pencil sharpener (d) a smart energy meter
30. 30.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
32. 32.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
33. 33.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) an app-controlled bulb (d) a plain table fan
34. 34.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) an app-controlled bulb (d) a paper calendar
36. 36.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
37. 37.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
38. 38.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a smart energy meter (d) a Wi-Fi doorbell camera
39. 39.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it

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