Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 465 · 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.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
4. 4.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a pencil sharpener (d) a plain wall switch
6. 6.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a wind-up clock (d) a Wi-Fi doorbell camera
7. 7.🌐 In an IoT system, which part carries the data? (a) cloud server (b) microcontroller (c) actuator (d) Wi-Fi
8. 8.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) phone app (d) microcontroller
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
10. 10.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) Wi-Fi (d) actuator
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
13. 13.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a smart energy meter (d) a battery torch
14. 14.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi smart plug
15. 15.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi weather station
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
17. 17.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
19. 19.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
22. 22.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
23. 23.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) stores data online (d) reads values, decides
24. 24.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) cloud server (c) microcontroller (d) sensor
25. 25.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
27. 27.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi doorbell camera
29. 29.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
30. 30.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) an app-controlled bulb (d) a plain wall switch
31. 31.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) actuator (d) Wi-Fi
33. 33.What does the cloud server do? (a) stores data online (b) shows data to you (c) measures the real world (d) reads values, decides
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
35. 35.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
36. 36.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi smart plug (d) a fitness band with app
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
40. 40.Which of these is not an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera

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