Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 458 · 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, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
2. 2.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
3. 3.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
4. 4.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a battery torch
5. 5.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi smart plug (d) a wind-up clock
6. 6.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
7. 7.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
9. 9.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) sensor (d) microcontroller
10. 10.Which of these is not an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
12. 12.What does the Wi-Fi link do? (a) acts on a command (b) stores data online (c) carries the data (d) shows data to you
13. 13.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a battery torch (d) a Wi-Fi doorbell camera
14. 14.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
15. 15.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a plain table fan (d) a smart energy meter
16. 16.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
17. 17.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) cloud server
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
19. 19.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
21. 21.What does the phone app do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) carries the data
22. 22.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
24. 24.Which of these is not an IoT device? (a) a plain table fan (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi smart plug
25. 25.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a paper calendar
26. 26.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
27. 27.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a wind-up clock (d) a fitness band with app
28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
29. 29.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
30. 30.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a fitness band with app (d) a plain table fan
31. 31.What does the cloud server do? (a) stores data online (b) reads values, decides (c) measures the real world (d) carries the data
32. 32.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) microcontroller (d) sensor
33. 33.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a battery torch (d) a plain wall switch
34. 34.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) an app-controlled bulb (d) a plain wall switch
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a smart energy meter (d) a fitness band with app
37. 37.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
38. 38.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) phone app (d) cloud server

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