Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 831 · 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 the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a wind-up clock (d) an app-controlled bulb
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
3. 3.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
4. 4.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a fitness band with app (d) a Wi-Fi smart plug
5. 5.🔢 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
6. 6.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain table fan
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a fitness band with app (d) a Wi-Fi weather station
8. 8.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) phone app (d) cloud server
9. 9.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
10. 10.Which of these is not an IoT device? (a) a fitness band with app (b) a paper calendar (c) a Wi-Fi smart plug (d) an app-controlled bulb
11. 11.🔢 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
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
14. 14.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
15. 15.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
16. 16.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) an app-controlled bulb (d) a pencil sharpener
17. 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
19. 19.🔢 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
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
21. 21.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
22. 22.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
24. 24.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) Wi-Fi (d) phone app
25. 25.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) actuator (d) cloud server
26. 26.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) phone app (d) microcontroller
28. 28.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
29. 29.What does the cloud server do? (a) shows data to you (b) acts on a command (c) carries the data (d) stores data online
30. 30.🔢 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
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
33. 33.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
35. 35.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) measures the real world (d) stores data online
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
37. 37.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi weather station
38. 38.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
40. 40.What does the phone app do? (a) shows data to you (b) carries the data (c) measures the real world (d) stores data online

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