Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 228 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
2. 2.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi smart plug (d) a smart energy meter
3. 3.Which of these is not an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
4. 4.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a smart energy meter
5. 5.What does the sensor do? (a) acts on a command (b) shows data to you (c) carries the data (d) measures the real world
6. 6.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
8. 8.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
9. 9.What does the actuator do? (a) acts on a command (b) measures the real world (c) carries the data (d) reads values, decides
10. 10.What does the Wi-Fi link do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) carries the data
11. 11.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a paper calendar (d) a smart energy meter
12. 12.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
13. 13.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) actuator (d) sensor
14. 14.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
16. 16.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi weather station (d) a battery torch
17. 17.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) a Wi-Fi doorbell camera
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
20. 20.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) sensor (d) microcontroller
21. 21.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi weather station
22. 22.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a fitness band with app (d) a battery torch
23. 23.What does the cloud server do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) stores data online
24. 24.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) carries the data (d) stores data online
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) an app-controlled bulb (d) a smart energy meter
27. 27.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) phone app (c) cloud server (d) actuator
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
29. 29.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) sensor (c) cloud server (d) microcontroller
30. 30.🔢 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
31. 31.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a fitness band with app (d) a plain wall switch
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
34. 34.What does the phone app do? (a) reads values, decides (b) carries the data (c) shows data to you (d) acts on a command
35. 35.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) microcontroller (d) phone app
36. 36.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a plain table fan
37. 37.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain wall switch
38. 38.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a fitness band with app
39. 39.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi doorbell camera
40. 40.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting

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