Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 337 · 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 Wi-Fi link do? (a) carries the data (b) measures the real world (c) acts on a command (d) reads values, decides
2. 2.What does the phone app do? (a) acts on a command (b) stores data online (c) carries the data (d) shows data to you
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
4. 4.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
6. 6.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain wall switch
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) an app-controlled bulb (d) a pencil sharpener
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain table fan
9. 9.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a fitness band with app (d) a smart energy meter
10. 10.What does the sensor do? (a) acts on a command (b) measures the real world (c) shows data to you (d) reads values, decides
11. 11.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
14. 14.🔢 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 board reads it (c) the cloud stores it (d) the sensor measures
15. 15.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) sensor (d) phone app
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
17. 17.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a fitness band with app
20. 20.What does the actuator do? (a) acts on a command (b) reads values, decides (c) carries the data (d) measures the real world
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
22. 22.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi weather station
23. 23.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) cloud server (d) phone app
24. 24.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
25. 25.What does the cloud server do? (a) shows data to you (b) measures the real world (c) stores data online (d) reads values, decides
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
28. 28.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a battery torch
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
32. 32.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) an app-controlled bulb (d) a wind-up clock
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
35. 35.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
36. 36.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
37. 37.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a battery torch (d) a pencil sharpener
38. 38.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?

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