Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 332 · 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, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
2. 2.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a plain table fan (d) a wind-up clock
3. 3.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a battery torch (d) a Wi-Fi smart plug
4. 4.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) sensor (d) Wi-Fi
5. 5.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a smart energy meter (d) a battery torch
6. 6.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
8. 8.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
9. 9.What does the actuator do? (a) carries the data (b) stores data online (c) shows data to you (d) acts on a command
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
11. 11.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a battery torch (d) a smart energy meter
12. 12.What does the phone app do? (a) measures the real world (b) carries the data (c) reads values, decides (d) shows data to you
13. 13.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a fitness band with app (d) a paper calendar
14. 14.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi weather station
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
16. 16.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) phone app (d) Wi-Fi
17. 17.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
19. 19.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) actuator (d) Wi-Fi
20. 20.🔢 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
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
23. 23.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
28. 28.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) an app-controlled bulb (d) a paper calendar
29. 29.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi smart plug
30. 30.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
32. 32.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) stores data online
33. 33.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
34. 34.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
35. 35.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) shows data to you (d) measures the real world
36. 36.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain wall switch (d) a pencil sharpener
37. 37.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
38. 38.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a battery torch
39. 39.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
40. 40.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?

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