Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 122 · 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.What does the phone app do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) stores data online
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a Wi-Fi smart plug
3. 3.🔢 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 board reads it (d) the app shows it
4. 4.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
5. 5.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
8. 8.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
9. 9.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a smart energy meter
10. 10.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a wind-up clock (d) a paper calendar
11. 11.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) an app-controlled bulb (d) a pencil sharpener
12. 12.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) sensor (d) Wi-Fi
13. 13.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔢 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
15. 15.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
16. 16.What does the cloud server do? (a) measures the real world (b) reads values, decides (c) stores data online (d) acts on a command
17. 17.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi weather station (d) a battery torch
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
21. 21.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a fitness band with app (d) a wind-up clock
22. 22.🔢 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
23. 23.🔢 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
24. 24.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a plain wall switch
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
26. 26.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi smart plug
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a pencil sharpener (d) a battery torch
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
30. 30.What does the sensor do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) carries the data
31. 31.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) phone app (d) sensor
32. 32.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi weather station
33. 33.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) Wi-Fi (d) actuator
34. 34.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
35. 35.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
37. 37.What does the microcontroller do? (a) stores data online (b) shows data to you (c) reads values, decides (d) carries the data
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
40. 40.Which of these is not an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi smart plug

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