Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 138 · 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.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
3. 3.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a wind-up clock (d) a Wi-Fi doorbell camera
4. 4.🔢 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 board reads it (d) the sensor measures
5. 5.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
6. 6.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a paper calendar (d) a pencil sharpener
7. 7.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) Wi-Fi (d) sensor
8. 8.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
9. 9.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
10. 10.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
11. 11.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) sensor (d) Wi-Fi
12. 12.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
13. 13.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
14. 14.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a plain wall switch (d) a plain table fan
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
17. 17.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🔍 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 doorbell camera
19. 19.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
21. 21.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a smart energy meter (d) a fitness band with app
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
24. 24.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a wind-up clock (d) a battery torch
25. 25.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a paper calendar
26. 26.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a smart energy meter (d) a fitness band with app
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
28. 28.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a paper calendar (d) a plain table fan
29. 29.What does the sensor do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) stores data online
30. 30.🔢 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 board reads it (c) the sensor measures (d) the cloud stores it
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
32. 32.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
33. 33.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
34. 34.What does the phone app do? (a) measures the real world (b) stores data online (c) shows data to you (d) acts on a command
35. 35.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
38. 38.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
39. 39.What does the cloud server do? (a) carries the data (b) measures the real world (c) stores data online (d) reads values, decides
40. 40.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

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