Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 650 · 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 plain wall switch (b) a paper calendar (c) a plain table fan (d) a Wi-Fi weather station
2. 2.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a fitness band with app (d) a wind-up clock
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
4. 4.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
5. 5.What does the phone app do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a pencil sharpener (d) a plain wall switch
7. 7.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a battery torch (d) a plain wall switch
8. 8.What does the sensor do? (a) measures the real world (b) carries the data (c) acts on a command (d) reads values, decides
9. 9.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) microcontroller (d) actuator
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
12. 12.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) an app-controlled bulb (d) a plain wall switch
13. 13.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
15. 15.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) phone app (c) actuator (d) sensor
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
19. 19.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) sensor (d) phone app
21. 21.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
23. 23.🌐 In an IoT system, which part carries the data? (a) actuator (b) cloud server (c) Wi-Fi (d) sensor
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a Wi-Fi smart plug (d) a fitness band with app
25. 25.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a wind-up clock (d) a Wi-Fi doorbell camera
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
29. 29.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
31. 31.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
32. 32.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a battery torch (d) a smart energy meter
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
34. 34.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a pencil sharpener (d) a paper calendar
35. 35.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
36. 36.🌐 In an IoT system, which part stores data online? (a) phone app (b) microcontroller (c) cloud server (d) sensor
37. 37.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a Wi-Fi weather station (d) a smart energy meter
39. 39.Which of these is not an IoT device? (a) a plain table fan (b) a smart energy meter (c) a fitness band with app (d) an app-controlled bulb
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?

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