Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 647 · 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.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
2. 2.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
3. 3.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
5. 5.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
6. 6.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a plain table fan (d) a wind-up clock
7. 7.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
8. 8.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a plain wall switch
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
10. 10.What does the cloud server do? (a) acts on a command (b) reads values, decides (c) carries the data (d) stores data online
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
14. 14.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a Wi-Fi smart plug
16. 16.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a plain table fan (d) a pencil sharpener
17. 17.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
18. 18.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) sensor (d) actuator
19. 19.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
20. 20.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
24. 24.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a wind-up clock (d) a pencil sharpener
25. 25.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
27. 27.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a smart energy meter (d) a fitness band with app
28. 28.What does the Wi-Fi link do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
29. 29.What does the sensor do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
30. 30.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) an app-controlled bulb (d) a fitness band with app
31. 31.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a fitness band with app (d) a wind-up clock
32. 32.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a fitness band with app
33. 33.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) an app-controlled bulb
34. 34.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a fitness band with app (d) a pencil sharpener
35. 35.🌐 In an IoT system, which part carries the data? (a) cloud server (b) phone app (c) sensor (d) Wi-Fi
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a fitness band with app (d) a battery torch
38. 38.What does the microcontroller do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides
39. 39.🔢 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
40. 40.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) actuator (d) microcontroller

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