Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 784 · 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 acts on a command? (a) actuator (b) Wi-Fi (c) phone app (d) microcontroller
2. 2.🔢 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
3. 3.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) sensor (d) microcontroller
5. 5.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
6. 6.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a battery torch
7. 7.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a plain table fan (d) a pencil sharpener
8. 8.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) actuator (d) sensor
9. 9.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
13. 13.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi smart plug (d) an app-controlled bulb
14. 14.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a pencil sharpener (d) a fitness band with app
16. 16.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) an app-controlled bulb (d) a plain wall switch
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
20. 20.🔢 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
21. 21.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a smart energy meter
22. 22.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) cloud server (d) Wi-Fi
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) an app-controlled bulb
24. 24.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a fitness band with app (d) a Wi-Fi weather station
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
26. 26.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
27. 27.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
28. 28.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
29. 29.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) shows data to you (d) reads values, decides
30. 30.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
32. 32.🏠 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
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
34. 34.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
37. 37.What does the sensor do? (a) carries the data (b) measures the real world (c) acts on a command (d) reads values, decides
38. 38.What does the cloud server do? (a) measures the real world (b) stores data online (c) carries the data (d) acts on a command
39. 39.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a wind-up clock (d) a paper calendar
40. 40.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device

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