Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 200 · 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 is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a pencil sharpener (d) a fitness band with app
3. 3.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a plain table fan (d) a fitness band with app
4. 4.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
7. 7.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a wind-up clock (d) a pencil sharpener
8. 8.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
10. 10.🔢 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
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
12. 12.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
14. 14.What does the phone app do? (a) reads values, decides (b) shows data to you (c) stores data online (d) acts on a command
15. 15.What does the microcontroller do? (a) stores data online (b) measures the real world (c) carries the data (d) reads values, decides
16. 16.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) Wi-Fi (c) cloud server (d) microcontroller
17. 17.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
18. 18.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
20. 20.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
21. 21.Which of these is not an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a smart energy meter (d) an app-controlled bulb
22. 22.🌐 In an IoT system, which part stores data online? (a) sensor (b) microcontroller (c) actuator (d) cloud server
23. 23.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a plain table fan (d) a paper calendar
24. 24.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a paper calendar (d) an app-controlled bulb
27. 27.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain wall switch (d) a wind-up clock
28. 28.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) microcontroller (d) cloud server
29. 29.What does the cloud server do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) stores data online
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) an app-controlled bulb (d) a Wi-Fi smart plug
31. 31.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) carries the data
32. 32.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) phone app (d) sensor
33. 33.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) actuator (d) phone app
34. 34.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a fitness band with app
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain wall switch
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain table fan (d) a smart energy meter
39. 39.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?

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