Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 351 · 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) reads values, decides (b) acts on a command (c) stores data online (d) shows data to you
2. 2.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
3. 3.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) cloud server (d) actuator
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
5. 5.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
7. 7.🔢 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
8. 8.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
10. 10.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a paper calendar (d) a plain table fan
11. 11.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
12. 12.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
13. 13.What does the actuator do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
14. 14.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
15. 15.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
17. 17.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
20. 20.What does the sensor do? (a) carries the data (b) stores data online (c) measures the real world (d) reads values, decides
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
22. 22.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi weather station
23. 23.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 In an IoT system, which part carries the data? (a) actuator (b) sensor (c) Wi-Fi (d) cloud server
25. 25.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) phone app (d) Wi-Fi
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
27. 27.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
28. 28.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
29. 29.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) actuator
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
31. 31.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
32. 32.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a battery torch (d) an app-controlled bulb
33. 33.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
34. 34.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
35. 35.🌐 Is a wind-up clock 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: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
37. 37.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
39. 39.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) microcontroller (d) actuator

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