Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 44 · 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 a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
2. 2.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a plain table fan (d) a battery torch
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi doorbell camera
5. 5.🔢 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
6. 6.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) Wi-Fi (d) sensor
7. 7.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) phone app (d) microcontroller
8. 8.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a plain table fan (d) a plain wall switch
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a pencil sharpener (d) a smart energy meter
10. 10.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
11. 11.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) stores data online (d) measures the real world
12. 12.🔍 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
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
14. 14.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) phone app (d) cloud server
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
16. 16.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
17. 17.What does the actuator do? (a) acts on a command (b) reads values, decides (c) stores data online (d) carries the data
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
19. 19.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a battery torch (d) a Wi-Fi smart plug
20. 20.What does the cloud server do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
22. 22.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a wind-up clock (d) a battery torch
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a fitness band with app
24. 24.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
25. 25.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi smart plug (d) a plain wall switch
26. 26.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) phone app (d) actuator
28. 28.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) sensor (d) microcontroller
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
31. 31.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
32. 32.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) measures the real world (d) shows data to you
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a fitness band with app (d) a wind-up clock
34. 34.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a paper calendar
36. 36.What does the sensor do? (a) shows data to you (b) acts on a command (c) measures the real world (d) reads values, decides
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
38. 38.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a wind-up clock
39. 39.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
40. 40.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a Wi-Fi weather station

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