Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 849 · 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 Wi-Fi doorbell camera (b) a battery torch (c) a pencil sharpener (d) a plain table fan
2. 2.🌐 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
3. 3.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a Wi-Fi smart plug
4. 4.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a fitness band with app
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🔢 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 board reads it (d) the app shows it
7. 7.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
8. 8.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 In an IoT system, which part carries the data? (a) phone app (b) sensor (c) Wi-Fi (d) actuator
10. 10.🏠 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
11. 11.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a plain wall switch (d) a pencil sharpener
12. 12.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
14. 14.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi smart plug
15. 15.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a paper calendar (d) a wind-up clock
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
17. 17.What does the phone app do? (a) shows data to you (b) carries the data (c) measures the real world (d) reads values, decides
18. 18.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a paper calendar (d) an app-controlled bulb
20. 20.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) actuator (d) microcontroller
21. 21.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
24. 24.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a battery torch (d) a Wi-Fi weather station
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
26. 26.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) cloud server (c) sensor (d) microcontroller
27. 27.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) microcontroller (d) sensor
28. 28.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
29. 29.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) sensor (d) cloud server
30. 30.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
32. 32.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a wind-up clock (d) a fitness band with app
33. 33.🌐 In an IoT system, which part stores data online? (a) actuator (b) phone app (c) cloud server (d) sensor
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a battery torch (d) a smart energy meter
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
36. 36.🔢 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
37. 37.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
38. 38.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
40. 40.What does the cloud server do? (a) stores data online (b) measures the real world (c) carries the data (d) shows data to you

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