Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 153 · 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 plain wall switch (b) a pencil sharpener (c) a battery torch (d) an app-controlled bulb
2. 2.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
3. 3.What does the actuator do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
5. 5.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a smart energy meter
6. 6.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) Wi-Fi (d) microcontroller
7. 7.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures
8. 8.🔢 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
9. 9.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi weather station (d) a pencil sharpener
10. 10.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) a fitness band with app
11. 11.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a smart energy meter (d) a battery torch
12. 12.What does the sensor do? (a) measures the real world (b) stores data online (c) acts on a command (d) carries the data
13. 13.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a pencil sharpener (d) a fitness band with app
14. 14.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
15. 15.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
16. 16.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) sensor (d) phone app
17. 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🔢 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
19. 19.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi smart plug
20. 20.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
21. 21.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi smart plug
22. 22.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) Wi-Fi (d) phone app
23. 23.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) an app-controlled bulb (d) a pencil sharpener
24. 24.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a plain wall switch
25. 25.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
27. 27.What does the microcontroller do? (a) stores data online (b) acts on a command (c) reads values, decides (d) shows data to you
28. 28.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
29. 29.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
30. 30.What does the phone app do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
31. 31.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
32. 32.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
33. 33.🔢 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
34. 34.What does the cloud server do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) stores data online
35. 35.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
37. 37.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a smart energy meter
40. 40.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain wall switch (d) a fitness band with app

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