Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 995 · 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 wind-up clock (b) a fitness band with app (c) a plain table fan (d) a plain wall switch
2. 2.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🔢 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
4. 4.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 plain table fan
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain table fan
6. 6.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
7. 7.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a plain table fan (d) a paper calendar
8. 8.What does the actuator do? (a) measures the real world (b) acts on a command (c) stores data online (d) reads values, decides
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
11. 11.What does the microcontroller do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
12. 12.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi smart plug (d) a fitness band with app
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
14. 14.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
15. 15.🌐 In an IoT system, which part carries the data? (a) phone app (b) actuator (c) Wi-Fi (d) sensor
16. 16.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a plain wall switch (d) a paper calendar
17. 17.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a plain wall switch (d) a pencil sharpener
18. 18.What does the Wi-Fi link do? (a) carries the data (b) stores data online (c) measures the real world (d) shows data to you
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a wind-up clock (d) an app-controlled bulb
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
23. 23.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a fitness band with app (d) a Wi-Fi smart plug
24. 24.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) actuator (c) sensor (d) phone app
25. 25.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain wall switch
26. 26.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) carries the data (d) stores data online
27. 27.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) cloud server (c) microcontroller (d) Wi-Fi
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
29. 29.What does the phone app do? (a) measures the real world (b) stores data online (c) acts on a command (d) shows data to you
30. 30.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) actuator (d) phone app
31. 31.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
32. 32.🔢 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
33. 33.🏠 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
34. 34.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
36. 36.🔢 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
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
39. 39.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) sensor (d) phone app
40. 40.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device

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