Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 400 · 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 phone app do? (a) carries the data (b) reads values, decides (c) measures the real world (d) shows data to you
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
3. 3.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
4. 4.🌐 In an IoT system, which part measures the real world? (a) actuator (b) Wi-Fi (c) sensor (d) microcontroller
5. 5.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
6. 6.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
7. 7.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
8. 8.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) cloud server (d) Wi-Fi
9. 9.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
12. 12.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) sensor (d) cloud server
13. 13.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a plain table fan (d) a plain wall switch
14. 14.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
15. 15.🔢 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 board reads it (d) the sensor measures
16. 16.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔢 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
18. 18.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a smart energy meter
19. 19.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
21. 21.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
22. 22.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a plain wall switch (d) a plain table fan
23. 23.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a smart energy meter (d) a wind-up clock
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a fitness band with app (d) a Wi-Fi doorbell camera
25. 25.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
26. 26.What does the cloud server do? (a) carries the data (b) shows data to you (c) stores data online (d) measures the real world
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
28. 28.🌐 In an IoT system, which part carries the data? (a) actuator (b) sensor (c) microcontroller (d) Wi-Fi
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
30. 30.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a paper calendar (d) a wind-up clock
31. 31.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a plain wall switch
32. 32.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) Wi-Fi (c) actuator (d) microcontroller
33. 33.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain table fan
34. 34.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a plain wall switch (d) a fitness band with app
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
36. 36.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?

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