Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 918 · 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 battery torch (b) a pencil sharpener (c) a plain table fan (d) an app-controlled bulb
2. 2.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
3. 3.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
4. 4.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
5. 5.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
7. 7.What does the cloud server do? (a) measures the real world (b) stores data online (c) acts on a command (d) reads values, decides
8. 8.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
9. 9.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) sensor (d) actuator
10. 10.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) an app-controlled bulb (d) a fitness band with app
12. 12.🌐 In an IoT system, which part carries the data? (a) cloud server (b) sensor (c) actuator (d) Wi-Fi
13. 13.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) microcontroller (c) actuator (d) phone app
14. 14.What does the microcontroller do? (a) shows data to you (b) carries the data (c) acts on a command (d) reads values, decides
15. 15.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi doorbell camera
16. 16.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a pencil sharpener (d) a paper calendar
17. 17.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi weather station
18. 18.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
19. 19.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a pencil sharpener (d) a battery torch
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
22. 22.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
25. 25.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
29. 29.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a smart energy meter (d) a wind-up clock
30. 30.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a battery torch
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
32. 32.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a battery torch (d) a plain table fan
34. 34.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) Wi-Fi (d) phone app
36. 36.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi smart plug
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a smart energy meter (d) an app-controlled bulb
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
40. 40.🔢 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

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