Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 59 · 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.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) sensor (d) microcontroller
3. 3.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) phone app (c) Wi-Fi (d) sensor
4. 4.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) phone app (d) Wi-Fi
5. 5.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a fitness band with app (d) a battery torch
6. 6.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi weather station (d) a smart energy meter
8. 8.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
10. 10.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
11. 11.What does the cloud server do? (a) carries the data (b) shows data to you (c) measures the real world (d) stores data online
12. 12.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
13. 13.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a Wi-Fi weather station
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
15. 15.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) an app-controlled bulb (d) a pencil sharpener
17. 17.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a battery torch (d) a plain wall switch
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
19. 19.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a smart energy meter (d) a plain table fan
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
21. 21.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a fitness band with app (d) a plain table fan
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi weather station (d) a plain table fan
23. 23.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
24. 24.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
25. 25.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain wall switch
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
28. 28.🔢 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
29. 29.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
30. 30.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a candle in a jar (d) a printed map
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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
33. 33.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
35. 35.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a paper calendar
36. 36.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it

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