Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 566 · 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 of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a plain table fan (d) a pencil sharpener
2. 2.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
3. 3.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) cloud server (d) actuator
4. 4.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
5. 5.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
6. 6.Which of these is not an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
7. 7.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
9. 9.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
11. 11.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
12. 12.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔢 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
14. 14.🌐 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
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
16. 16.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi smart plug (d) a wind-up clock
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
18. 18.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a fitness band with app
19. 19.What does the actuator do? (a) carries the data (b) shows data to you (c) reads values, decides (d) acts on a command
20. 20.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) microcontroller (d) phone app
21. 21.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a plain table fan (d) a battery torch
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the cloud stores it
26. 26.What does the sensor do? (a) stores data online (b) carries the data (c) shows data to you (d) measures the real world
27. 27.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) phone app (d) Wi-Fi
28. 28.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
30. 30.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a battery torch
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
32. 32.🔢 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
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
34. 34.What does the cloud server do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
36. 36.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
37. 37.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
38. 38.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
39. 39.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) sensor (d) Wi-Fi

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