Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 312 · 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 of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a pencil sharpener
2. 2.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
3. 3.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) cloud server (d) microcontroller
4. 4.🔢 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) the app shows it (d) it is sent by Wi-Fi
5. 5.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) stores data online
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
7. 7.Which of these is an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a wind-up clock (d) a plain table fan
8. 8.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
9. 9.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain table fan
10. 10.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
12. 12.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 In an IoT system, which part shows data to you? (a) phone app (b) Wi-Fi (c) microcontroller (d) sensor
14. 14.What does the phone app do? (a) stores data online (b) reads values, decides (c) shows data to you (d) acts on a command
15. 15.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) Wi-Fi (d) phone app
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
18. 18.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) an app-controlled bulb (d) a battery torch
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a fitness band with app (d) an app-controlled bulb
20. 20.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
22. 22.What does the sensor do? (a) shows data to you (b) stores data online (c) measures the real world (d) acts on a command
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
24. 24.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) Wi-Fi (d) cloud server
25. 25.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a paper calendar (d) an app-controlled bulb
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi smart plug
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
28. 28.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) cloud server (d) phone app
29. 29.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
31. 31.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
34. 34.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
36. 36.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi smart plug
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
38. 38.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a paper calendar (d) a fitness band with app
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it

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