Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 229 · 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 not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain table fan
2. 2.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
3. 3.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a battery torch (d) a Wi-Fi doorbell camera
6. 6.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) cloud server (d) actuator
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
9. 9.🔢 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
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
11. 11.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
12. 12.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a smart energy meter
13. 13.Which of these is not an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a smart energy meter (d) a fitness band with app
14. 14.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi weather station
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
16. 16.What does the phone app do? (a) stores data online (b) carries the data (c) measures the real world (d) shows data to you
17. 17.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) an app-controlled bulb (d) a paper calendar
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a battery torch (d) a fitness band with app
19. 19.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
20. 20.What does the cloud server do? (a) measures the real world (b) stores data online (c) carries the data (d) reads values, decides
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
23. 23.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) acts on a command (d) carries the data
24. 24.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi doorbell camera
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
26. 26.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
27. 27.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) Wi-Fi (d) sensor
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
32. 32.🔢 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
33. 33.What does the sensor do? (a) carries the data (b) acts on a command (c) stores data online (d) measures the real world
34. 34.🌐 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
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
36. 36.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) stores data online (d) reads values, decides
37. 37.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🔢 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 app shows it (d) the board reads it
40. 40.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain wall switch (d) a paper calendar

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