Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 806 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
2. 2.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
3. 3.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
4. 4.🔢 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
5. 5.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) sensor (c) Wi-Fi (d) actuator
8. 8.🔢 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
9. 9.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
10. 10.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) sensor (d) cloud server
11. 11.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) phone app (c) cloud server (d) Wi-Fi
13. 13.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
14. 14.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
16. 16.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) Wi-Fi (d) actuator
17. 17.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a plain table fan (d) a pencil sharpener
18. 18.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a wind-up clock (d) a smart energy meter
19. 19.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
20. 20.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a Wi-Fi doorbell camera (d) a pencil sharpener
21. 21.What does the phone app do? (a) reads values, decides (b) stores data online (c) measures the real world (d) shows data to you
22. 22.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
24. 24.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a wind-up clock (d) a paper calendar
25. 25.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
27. 27.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a paper calendar (d) a battery torch
28. 28.🌐 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
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
30. 30.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
31. 31.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) stores data online
32. 32.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) cloud server (d) phone app
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
34. 34.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a fitness band with app (d) a battery torch
35. 35.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a plain table fan (d) a pencil sharpener
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
37. 37.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a smart energy meter
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
40. 40.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) stores data online (d) shows data to you

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