Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 207 · 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 of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi smart plug (d) a pencil sharpener
2. 2.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a plain wall switch (d) a pencil sharpener
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
4. 4.What does the sensor do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) measures the real world
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
6. 6.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
10. 10.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
11. 11.What does the cloud server do? (a) measures the real world (b) reads values, decides (c) stores data online (d) shows data to you
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
17. 17.What does the phone app do? (a) reads values, decides (b) carries the data (c) stores data online (d) shows data to you
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a paper calendar
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
20. 20.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
22. 22.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
24. 24.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) cloud server (d) phone app
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
26. 26.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a wind-up clock (d) an app-controlled bulb
27. 27.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
28. 28.What does the microcontroller do? (a) acts on a command (b) carries the data (c) stores data online (d) reads values, decides
29. 29.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) Wi-Fi (d) microcontroller
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
33. 33.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi smart plug
34. 34.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a wind-up clock (d) an app-controlled bulb
35. 35.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
36. 36.What does the Wi-Fi link do? (a) shows data to you (b) acts on a command (c) carries the data (d) reads values, decides
37. 37.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
38. 38.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a plain wall switch (d) a paper calendar
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it

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