Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 279 · 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.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) phone app (d) cloud server
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
3. 3.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
5. 5.Which of these is an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a battery torch (d) a pencil sharpener
6. 6.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
7. 7.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a pencil sharpener (d) a smart energy meter
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
9. 9.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) cloud server (d) actuator
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
11. 11.What does the phone app do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) acts on a command
12. 12.What does the cloud server do? (a) carries the data (b) measures the real world (c) stores data online (d) acts on a command
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a paper calendar (d) an app-controlled bulb
17. 17.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a plain wall switch (d) a smart energy meter
18. 18.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) phone app (d) Wi-Fi
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
20. 20.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a pencil sharpener
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
24. 24.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
26. 26.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain table fan (d) a plain wall switch
27. 27.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
28. 28.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
30. 30.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain wall switch
31. 31.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
32. 32.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a pencil sharpener
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
37. 37.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
40. 40.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) actuator (d) phone app

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