Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 672 · 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.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi smart plug (d) a plain table fan
3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a paper calendar (d) a fitness band with app
5. 5.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) microcontroller (d) actuator
6. 6.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) actuator (d) Wi-Fi
7. 7.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
8. 8.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a wind-up clock (d) a battery torch
9. 9.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
11. 11.What does the phone app do? (a) measures the real world (b) acts on a command (c) carries the data (d) shows data to you
12. 12.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi weather station (d) a paper calendar
13. 13.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) cloud server (d) microcontroller
15. 15.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a fitness band with app (d) a plain wall switch
16. 16.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a battery torch
17. 17.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) shows data to you (d) stores data online
18. 18.What does the microcontroller do? (a) carries the data (b) measures the real world (c) acts on a command (d) reads values, decides
19. 19.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) stores data online
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
24. 24.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
26. 26.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
28. 28.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a fitness band with app
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
30. 30.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
32. 32.What does the sensor do? (a) stores data online (b) measures the real world (c) shows data to you (d) carries the data
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain table fan (d) a Wi-Fi smart plug
34. 34.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
35. 35.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
39. 39.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a fitness band with app (d) a paper calendar
40. 40.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a smart energy meter

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