Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 714 · 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 is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a paper calendar (d) a plain wall switch
2. 2.What does the phone app do? (a) measures the real world (b) acts on a command (c) stores data online (d) shows data to you
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
4. 4.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
7. 7.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
10. 10.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a paper calendar
12. 12.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
14. 14.What does the sensor do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
15. 15.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a pencil sharpener (d) a Wi-Fi smart plug
16. 16.What does the actuator do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) carries the data
17. 17.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a smart energy meter (d) a wind-up clock
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a plain wall switch (d) a fitness band with app
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
21. 21.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
22. 22.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
23. 23.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
24. 24.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) cloud server (c) microcontroller (d) Wi-Fi
25. 25.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
28. 28.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) measures the real world
29. 29.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a Wi-Fi doorbell camera (d) a wind-up clock
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain table fan (d) a paper calendar
32. 32.🔢 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 cloud stores it (d) the app shows it
33. 33.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a battery torch
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
35. 35.🏠 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
36. 36.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) a fitness band with app
37. 37.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
40. 40.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) actuator (c) phone app (d) Wi-Fi

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