Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 346 · 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 weather station an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
3. 3.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a pencil sharpener
4. 4.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
5. 5.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain wall switch
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
8. 8.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
9. 9.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) sensor (d) microcontroller
10. 10.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
11. 11.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) measures the real world
12. 12.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi smart plug (d) a fitness band with app
14. 14.What does the actuator do? (a) acts on a command (b) carries the data (c) measures the real world (d) reads values, decides
15. 15.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
16. 16.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a fitness band with app (d) a battery torch
17. 17.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
18. 18.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
19. 19.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a battery torch (d) a plain table fan
20. 20.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
21. 21.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
23. 23.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a plain table fan
24. 24.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a battery torch (d) a plain wall switch
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
26. 26.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
28. 28.Which of these is not an IoT device? (a) a fitness band with app (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
29. 29.🔢 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 sensor measures (c) the cloud stores it (d) the board reads it
30. 30.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
31. 31.What does the sensor do? (a) acts on a command (b) stores data online (c) carries the data (d) measures the real world
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
34. 34.🔢 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
35. 35.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
36. 36.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
39. 39.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain wall switch
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi

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