Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 498 · 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 a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
2. 2.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) Wi-Fi (d) phone app
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi weather station (d) a battery torch
5. 5.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a smart energy meter (d) a paper calendar
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a paper calendar
7. 7.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) a Wi-Fi weather station
9. 9.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
10. 10.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔢 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
12. 12.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
13. 13.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔢 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
15. 15.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
18. 18.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a smart energy meter
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
20. 20.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi smart plug (d) a pencil sharpener
21. 21.Which of these is an IoT device? (a) a fitness band with app (b) a plain table fan (c) a paper calendar (d) a plain wall switch
22. 22.What does the Wi-Fi link do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
24. 24.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a paper calendar
25. 25.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) an app-controlled bulb (d) a plain table fan
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain wall switch
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
28. 28.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
29. 29.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
30. 30.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) measures the real world (d) shows data to you
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
32. 32.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
33. 33.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) microcontroller (d) cloud server
35. 35.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
36. 36.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
38. 38.What does the cloud server do? (a) stores data online (b) carries the data (c) reads values, decides (d) measures the real world
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
40. 40.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi smart plug

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