Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 185 · 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 Wi-Fi weather station (c) a wind-up clock (d) a battery torch
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
3. 3.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
4. 4.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) carries the data (d) measures the real world
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
6. 6.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
7. 7.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a smart energy meter (d) a plain wall switch
8. 8.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) an app-controlled bulb (d) a battery torch
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
10. 10.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) phone app (d) cloud server
11. 11.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) an app-controlled bulb (d) a battery torch
12. 12.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) actuator (d) Wi-Fi
13. 13.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi weather station (d) a plain table fan
15. 15.What does the phone app do? (a) acts on a command (b) measures the real world (c) shows data to you (d) stores data online
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
19. 19.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) microcontroller (d) phone app
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
22. 22.🔢 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
23. 23.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
24. 24.Which of these is not an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
25. 25.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a plain table fan (d) a wind-up clock
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
29. 29.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
32. 32.🔢 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
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
34. 34.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
37. 37.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a plain table fan
38. 38.What does the microcontroller do? (a) carries the data (b) shows data to you (c) reads values, decides (d) acts on a command
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
40. 40.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device

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