Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 478 · 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 the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain wall switch
2. 2.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a smart energy meter (d) a fitness band with app
4. 4.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
6. 6.What does the phone app do? (a) stores data online (b) measures the real world (c) shows data to you (d) carries the data
7. 7.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
8. 8.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
9. 9.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) phone app (d) sensor
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
12. 12.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
14. 14.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
15. 15.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
16. 16.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) an app-controlled bulb (d) a Wi-Fi smart plug
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
18. 18.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a plain table fan (d) a fitness band with app
19. 19.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
21. 21.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a plain table fan (d) a paper calendar
22. 22.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) actuator (d) phone app
23. 23.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
25. 25.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
28. 28.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) cloud server (d) microcontroller
29. 29.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a pencil sharpener (d) a plain wall switch
31. 31.What does the sensor do? (a) shows data to you (b) stores data online (c) measures the real world (d) reads values, decides
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
33. 33.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) actuator (d) microcontroller
34. 34.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) cloud server (d) phone app
35. 35.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
37. 37.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
39. 39.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) carries the data (d) shows data to you
40. 40.What does the cloud server do? (a) stores data online (b) carries the data (c) shows data to you (d) reads values, decides

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