Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 833 · 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 pencil sharpener (b) a battery torch (c) a smart energy meter (d) a wind-up clock
2. 2.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) phone app (d) sensor
3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
4. 4.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain wall switch
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a plain wall switch (d) a paper calendar
6. 6.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a wind-up clock (d) an app-controlled bulb
7. 7.What does the cloud server do? (a) shows data to you (b) carries the data (c) measures the real world (d) stores data online
8. 8.What does the sensor do? (a) measures the real world (b) carries the data (c) stores data online (d) reads values, decides
9. 9.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
11. 11.Which of these is not an IoT device? (a) a fitness band with app (b) a paper calendar (c) a smart energy meter (d) a Wi-Fi doorbell camera
12. 12.What does the Wi-Fi link do? (a) acts on a command (b) reads values, decides (c) carries the data (d) shows data to you
13. 13.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) actuator (d) phone app
14. 14.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a smart energy meter
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a plain table fan (d) an app-controlled bulb
20. 20.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
23. 23.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
24. 24.What does the microcontroller do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
26. 26.🔢 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 cloud stores it (d) the sensor measures
27. 27.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a smart energy meter (d) a fitness band with app
29. 29.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
31. 31.What does the phone app do? (a) stores data online (b) shows data to you (c) acts on a command (d) reads values, decides
32. 32.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a wind-up clock (d) a paper calendar
33. 33.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi smart plug
34. 34.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a paper calendar
35. 35.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 plain wall switch
36. 36.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
37. 37.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?

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