Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 430 · 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 smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain wall switch
2. 2.What does the actuator do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) shows data to you
3. 3.🔢 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
4. 4.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
5. 5.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
6. 6.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
7. 7.🔍 Which is the odd one out? (a) a plain table fan (b) a fitness band with app (c) a paper calendar (d) a plain wall switch
8. 8.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) an app-controlled bulb
9. 9.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a plain wall switch (d) a Wi-Fi doorbell camera
10. 10.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
12. 12.What does the sensor do? (a) stores data online (b) reads values, decides (c) measures the real world (d) shows data to you
13. 13.What does the Wi-Fi link do? (a) shows data to you (b) acts on a command (c) carries the data (d) measures the real world
14. 14.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) microcontroller (d) sensor
15. 15.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
17. 17.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a fitness band with app (d) a smart energy meter
18. 18.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
20. 20.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a paper calendar (d) a smart energy meter
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the cloud stores it (c) the sensor measures (d) the app shows it
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a pencil sharpener (d) a paper calendar
24. 24.What does the phone app do? (a) acts on a command (b) shows data to you (c) measures the real world (d) carries the data
25. 25.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a plain table fan (d) a paper calendar
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
27. 27.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a battery torch (d) a paper calendar
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
33. 33.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
34. 34.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
35. 35.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
38. 38.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
39. 39.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a pencil sharpener
40. 40.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device

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