Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 416 · 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.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) microcontroller (c) cloud server (d) phone app
2. 2.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) phone app (c) Wi-Fi (d) actuator
3. 3.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
4. 4.🔢 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
5. 5.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a battery torch (d) a plain table fan
6. 6.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 In an IoT system, which part carries the data? (a) phone app (b) cloud server (c) microcontroller (d) Wi-Fi
8. 8.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
9. 9.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a Wi-Fi weather station (d) a fitness band with app
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
11. 11.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a wind-up clock (d) a fitness band with app
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
14. 14.🔢 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 cloud stores it (d) the sensor measures
15. 15.What does the microcontroller do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
16. 16.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔢 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
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
20. 20.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
21. 21.🔢 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) the board reads it (d) it is sent by Wi-Fi
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
23. 23.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
24. 24.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) sensor (d) Wi-Fi
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
28. 28.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a paper calendar (d) a fitness band with app
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) a Wi-Fi smart plug
33. 33.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a plain wall switch (d) a paper calendar
34. 34.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) actuator (d) Wi-Fi
35. 35.What does the sensor do? (a) carries the data (b) shows data to you (c) measures the real world (d) acts on a command
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
37. 37.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain table fan
38. 38.Which of these is not an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi weather station
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
40. 40.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map

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