Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 731 · 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.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) sensor (d) phone app
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi weather station (d) a paper calendar
3. 3.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a pencil sharpener (d) a paper calendar
4. 4.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
6. 6.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
7. 7.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a paper calendar (d) a wind-up clock
8. 8.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) an app-controlled bulb
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) sensor (d) phone app
11. 11.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
12. 12.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
14. 14.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock
15. 15.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi smart plug (d) a paper calendar
16. 16.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a fitness band with app (d) a battery torch
17. 17.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi smart plug (d) an app-controlled bulb
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
19. 19.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a paper calendar (d) a pencil sharpener
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
23. 23.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
24. 24.What does the phone app do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) shows data to you
25. 25.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
27. 27.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
30. 30.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
32. 32.What does the sensor do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
34. 34.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) actuator (d) Wi-Fi
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
37. 37.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) measures the real world (d) acts on a command
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
39. 39.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?

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