Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 419 · 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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
2. 2.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) Wi-Fi (d) microcontroller
3. 3.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a wind-up clock (d) a smart energy meter
4. 4.What does the actuator do? (a) shows data to you (b) stores data online (c) reads values, decides (d) acts on a command
5. 5.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
7. 7.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
8. 8.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a paper calendar
9. 9.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
11. 11.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a pencil sharpener
12. 12.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
13. 13.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) an app-controlled bulb
14. 14.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
15. 15.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
17. 17.🔢 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
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
19. 19.What does the microcontroller do? (a) carries the data (b) shows data to you (c) stores data online (d) reads values, decides
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
21. 21.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
22. 22.🔢 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
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
24. 24.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a pencil sharpener
26. 26.What does the cloud server do? (a) acts on a command (b) carries the data (c) stores data online (d) shows data to you
27. 27.What does the sensor do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
29. 29.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
31. 31.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
33. 33.What does the Wi-Fi link do? (a) measures the real world (b) reads values, decides (c) carries the data (d) shows data to you
34. 34.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) an app-controlled bulb
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
36. 36.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
38. 38.🔍 Which is the odd one out? (a) a plain table fan (b) a fitness band with app (c) a Wi-Fi weather station (d) a smart energy meter
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?

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