Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 297 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
2. 2.🏠 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
3. 3.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
4. 4.What does the microcontroller do? (a) shows data to you (b) carries the data (c) stores data online (d) reads values, decides
5. 5.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a paper calendar (d) a smart energy meter
8. 8.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a fitness band with app (d) a paper calendar
9. 9.What does the sensor do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides
10. 10.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
11. 11.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a battery torch (d) a Wi-Fi smart plug
13. 13.What does the actuator do? (a) reads values, decides (b) stores data online (c) acts on a command (d) measures the real world
14. 14.What does the phone app do? (a) acts on a command (b) stores data online (c) measures the real world (d) shows data to you
15. 15.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
16. 16.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain wall switch
17. 17.Which of these is not an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
18. 18.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
19. 19.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a paper calendar (d) a plain table fan
20. 20.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
21. 21.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
24. 24.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a battery torch (d) a pencil sharpener
26. 26.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
27. 27.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain wall switch
28. 28.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a pencil sharpener (d) a plain table fan
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
31. 31.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
32. 32.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) carries the data (d) reads values, decides
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
35. 35.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a plain wall switch (d) a wind-up clock
36. 36.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
39. 39.🌐 In an IoT system, which part carries the data? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?

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