Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 500 · 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 the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
2. 2.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) sensor (d) actuator
3. 3.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a paper calendar (d) a battery torch
4. 4.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi smart plug (d) a plain table fan
5. 5.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) phone app (d) sensor
6. 6.What does the actuator do? (a) carries the data (b) stores data online (c) shows data to you (d) acts on a command
7. 7.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
8. 8.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) stores data online (d) shows data to you
9. 9.🔢 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
10. 10.🔢 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
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a smart energy meter (d) a paper calendar
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
13. 13.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) Wi-Fi (c) microcontroller (d) actuator
14. 14.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) an app-controlled bulb (d) a wind-up clock
15. 15.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a battery torch
16. 16.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
17. 17.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
20. 20.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi doorbell camera
21. 21.🔢 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) it is sent by Wi-Fi
22. 22.What does the phone app do? (a) acts on a command (b) measures the real world (c) carries the data (d) shows data to you
23. 23.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🏠 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
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a plain table fan
27. 27.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain table fan
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
29. 29.🔢 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
30. 30.🔢 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
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
32. 32.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi doorbell camera
33. 33.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a paper calendar
34. 34.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) phone app (d) microcontroller
35. 35.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
36. 36.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) carries the data
37. 37.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
38. 38.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a fitness band with app (d) a plain wall switch
39. 39.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi weather station (d) a wind-up clock
40. 40.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?

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