Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 470 · 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 Wi-Fi smart plug (d) a paper calendar
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
4. 4.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
5. 5.🔢 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 app shows it (c) the sensor measures (d) the board reads it
6. 6.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
8. 8.What does the Wi-Fi link do? (a) stores data online (b) measures the real world (c) carries the data (d) reads values, decides
9. 9.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
10. 10.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) actuator (d) cloud server
11. 11.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
13. 13.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a smart energy meter (d) a pencil sharpener
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
15. 15.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
17. 17.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
19. 19.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) cloud server (d) actuator
20. 20.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a battery torch (d) a pencil sharpener
21. 21.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
22. 22.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a wind-up clock (d) a smart energy meter
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a battery torch
24. 24.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain table fan
25. 25.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
27. 27.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi doorbell camera
28. 28.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a plain wall switch (d) a paper calendar
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
32. 32.🔢 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
33. 33.What does the cloud server do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain table fan
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
39. 39.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) cloud server (d) Wi-Fi
40. 40.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app

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