Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 126 · 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.What does the cloud server do? (a) shows data to you (b) acts on a command (c) carries the data (d) stores data online
2. 2.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) actuator (d) microcontroller
3. 3.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a printed map (d) a hand fan
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
5. 5.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
6. 6.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
7. 7.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) cloud server (d) actuator
8. 8.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
9. 9.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
12. 12.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
14. 14.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) acts on a command (d) carries the data
15. 15.Which of these is not an IoT device? (a) a wind-up clock (b) a fitness band with app (c) an app-controlled bulb (d) a smart energy meter
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the cloud stores it
17. 17.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) phone app (d) microcontroller
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
19. 19.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
20. 20.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a Wi-Fi smart plug (d) a wind-up clock
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a battery torch
23. 23.Which of these is an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a plain wall switch (d) a plain table fan
24. 24.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
26. 26.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a wind-up clock
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the board reads it (c) the sensor measures (d) the cloud stores it
28. 28.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a plain wall switch
29. 29.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) stores data online (d) reads values, decides
30. 30.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a fitness band with app (d) a paper calendar
31. 31.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a smart energy meter (d) a plain table fan
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
34. 34.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a plain table fan (d) a fitness band with app
35. 35.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
36. 36.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain table fan
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
39. 39.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a wind-up clock (d) an app-controlled bulb
40. 40.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device

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