Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 399 · 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 an IoT device? (a) a plain table fan (b) a battery torch (c) an app-controlled bulb (d) a pencil sharpener
2. 2.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
3. 3.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
5. 5.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
7. 7.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) sensor (c) actuator (d) phone app
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
9. 9.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a plain table fan (d) a fitness band with app
10. 10.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a battery torch
12. 12.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
14. 14.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
15. 15.🌐 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
16. 16.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) microcontroller (d) phone app
17. 17.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) acts on a command (d) shows data to you
18. 18.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
20. 20.What does the phone app do? (a) shows data to you (b) measures the real world (c) stores data online (d) acts on a command
21. 21.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a paper calendar (d) a Wi-Fi weather station
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a paper calendar
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
25. 25.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a battery torch
26. 26.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
30. 30.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a wind-up clock (d) a plain wall switch
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
32. 32.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) an app-controlled bulb
33. 33.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain wall switch
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
36. 36.What does the actuator do? (a) stores data online (b) reads values, decides (c) acts on a command (d) measures the real world
37. 37.What does the sensor do? (a) measures the real world (b) reads values, decides (c) stores data online (d) carries the data
38. 38.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
39. 39.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) carries the data (d) measures the real world
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?

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