Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 841 · 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 not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) an app-controlled bulb (d) a plain wall switch
2. 2.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a plain table fan (d) a pencil sharpener
3. 3.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
6. 6.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain table fan (d) a Wi-Fi doorbell camera
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
8. 8.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) acts on a command
9. 9.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a battery torch (d) a Wi-Fi smart plug
10. 10.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) actuator (c) microcontroller (d) phone app
11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
12. 12.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) microcontroller (d) Wi-Fi
13. 13.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
14. 14.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
16. 16.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔢 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) it is sent by Wi-Fi (d) the board reads it
18. 18.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
19. 19.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a pencil sharpener (d) a plain wall switch
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
21. 21.What does the phone app do? (a) carries the data (b) measures the real world (c) stores data online (d) shows data to you
22. 22.What does the actuator do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
23. 23.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
26. 26.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a battery torch (d) a plain wall switch
27. 27.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a pencil sharpener (d) a plain table fan
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
30. 30.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
32. 32.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a battery torch
33. 33.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) Wi-Fi (d) phone app
34. 34.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a wind-up clock (d) a fitness band with app
35. 35.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi smart plug
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
38. 38.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a smart energy meter (d) a pencil sharpener
39. 39.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a wind-up clock
40. 40.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device

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