Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 751 · 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.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) microcontroller (d) sensor
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) an app-controlled bulb
3. 3.What does the sensor do? (a) measures the real world (b) stores data online (c) acts on a command (d) reads values, decides
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
5. 5.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) stores data online
6. 6.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
8. 8.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) actuator (c) cloud server (d) phone app
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
10. 10.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a smart energy meter (d) a pencil sharpener
11. 11.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
12. 12.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
13. 13.Which of these is an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a plain wall switch (d) a battery torch
14. 14.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
15. 15.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
16. 16.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
17. 17.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) phone app (d) cloud server
18. 18.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
19. 19.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) sensor (d) actuator
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🔢 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
22. 22.Which of these is not an IoT device? (a) a plain wall switch (b) a fitness band with app (c) an app-controlled bulb (d) a smart energy meter
23. 23.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
24. 24.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) a fitness band with app
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a plain table fan (d) a fitness band with app
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
27. 27.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
28. 28.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
29. 29.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a battery torch (d) a plain wall switch
30. 30.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) stores data online (d) acts on a command
31. 31.What does the cloud server do? (a) shows data to you (b) acts on a command (c) measures the real world (d) stores data online
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
33. 33.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a plain wall switch (d) a plain table fan
34. 34.What does the actuator do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) stores data online
35. 35.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
37. 37.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a fitness band with app (d) a paper calendar
39. 39.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?

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