Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 124 · 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 Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a battery torch
2. 2.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) an app-controlled bulb (d) a battery torch
3. 3.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a battery torch (d) a Wi-Fi smart plug
4. 4.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
5. 5.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
6. 6.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
8. 8.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
13. 13.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
14. 14.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
16. 16.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) cloud server (d) actuator
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
19. 19.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
21. 21.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a fitness band with app (d) a battery torch
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
24. 24.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) sensor (d) microcontroller
25. 25.What does the microcontroller do? (a) carries the data (b) acts on a command (c) measures the real world (d) reads values, decides
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
27. 27.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
29. 29.What does the cloud server do? (a) measures the real world (b) stores data online (c) acts on a command (d) shows data to you
30. 30.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
31. 31.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) phone app (c) Wi-Fi (d) cloud server
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
33. 33.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain table fan
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
36. 36.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
38. 38.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a Wi-Fi weather station (d) a pencil sharpener
40. 40.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a smart energy meter (d) a fitness band with app

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