Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 248 · 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.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) cloud server (d) phone app
2. 2.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a paper calendar
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a battery torch (d) a Wi-Fi doorbell camera
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
6. 6.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain wall switch
7. 7.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) carries the data (d) stores data online
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
10. 10.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a battery torch (d) a pencil sharpener
11. 11.What does the sensor do? (a) measures the real world (b) acts on a command (c) stores data online (d) reads values, decides
12. 12.🔢 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) the cloud stores it
13. 13.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) microcontroller (d) cloud server
14. 14.🏠 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
15. 15.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) an app-controlled bulb (d) a paper calendar
16. 16.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a battery torch (d) a wind-up clock
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
20. 20.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a fitness band with app
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
26. 26.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi doorbell camera
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
28. 28.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi weather station
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
31. 31.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a fitness band with app (d) a smart energy meter
34. 34.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a fitness band with app (d) a wind-up clock
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
36. 36.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) cloud server (d) actuator
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
38. 38.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
39. 39.What does the actuator do? (a) acts on a command (b) measures the real world (c) shows data to you (d) carries the data
40. 40.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) measures the real world (d) acts on a command

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