Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 655 · 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.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a wind-up clock (d) a plain table fan
3. 3.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi weather station
4. 4.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a battery torch
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
6. 6.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a wind-up clock
8. 8.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) phone app (c) cloud server (d) actuator
9. 9.🌐 In an IoT system, which part carries the data? (a) sensor (b) phone app (c) cloud server (d) Wi-Fi
10. 10.What does the actuator do? (a) measures the real world (b) acts on a command (c) carries the data (d) shows data to you
11. 11.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
12. 12.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
13. 13.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) measures the real world
14. 14.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
16. 16.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a paper calendar (d) a Wi-Fi smart plug
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
19. 19.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
20. 20.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a fitness band with app (d) a plain wall switch
21. 21.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
22. 22.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a paper calendar (d) a wind-up clock
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) an app-controlled bulb (d) a battery torch
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
25. 25.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a fitness band with app (d) a battery torch
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
27. 27.What does the cloud server do? (a) shows data to you (b) carries the data (c) stores data online (d) acts on a command
28. 28.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) an app-controlled bulb (d) a wind-up clock
29. 29.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a fitness band with app (d) a wind-up clock
30. 30.What does the sensor do? (a) stores data online (b) measures the real world (c) carries the data (d) acts on a command
31. 31.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
33. 33.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
35. 35.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
37. 37.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
38. 38.Which of these is an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a pencil sharpener (d) a battery torch
39. 39.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device

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