Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 990 · 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.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi doorbell camera (d) a paper calendar
3. 3.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) cloud server (d) sensor
5. 5.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
6. 6.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi weather station
7. 7.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) reads values, decides (d) measures the real world
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
9. 9.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) phone app (d) sensor
10. 10.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) sensor (d) phone app
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
14. 14.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
15. 15.🔍 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
16. 16.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) phone app (d) microcontroller
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
18. 18.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a pencil sharpener (d) a Wi-Fi smart plug
19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
20. 20.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
21. 21.What does the actuator do? (a) reads values, decides (b) acts on a command (c) stores data online (d) shows data to you
22. 22.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a Wi-Fi weather station (d) a battery torch
23. 23.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a smart energy meter (d) a battery torch
24. 24.What does the sensor do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) carries the data
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
26. 26.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a battery torch (d) a Wi-Fi smart plug
28. 28.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a battery torch (d) a plain table fan
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
30. 30.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain table fan
31. 31.What does the phone app do? (a) reads values, decides (b) measures the real world (c) stores data online (d) shows data to you
32. 32.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a wind-up clock (d) a Wi-Fi smart plug
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a fitness band with app
34. 34.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a battery torch
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
38. 38.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan

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