Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 147 · 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) an app-controlled bulb (b) a plain table fan (c) a battery torch (d) a paper calendar
2. 2.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
3. 3.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
4. 4.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi doorbell camera
5. 5.🔢 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
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
7. 7.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) the sensor measures (d) the app shows it
10. 10.What does the sensor do? (a) shows data to you (b) reads values, decides (c) stores data online (d) measures the real world
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a smart energy meter
12. 12.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
15. 15.🌐 In an IoT system, which part acts on a command? (a) phone app (b) cloud server (c) actuator (d) Wi-Fi
16. 16.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi smart plug
17. 17.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi smart plug (d) a wind-up clock
18. 18.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
22. 22.What does the actuator do? (a) acts on a command (b) stores data online (c) measures the real world (d) reads values, decides
23. 23.What does the microcontroller do? (a) measures the real world (b) carries the data (c) acts on a command (d) reads values, decides
24. 24.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) a fitness band with app
25. 25.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) microcontroller (d) phone app
26. 26.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
28. 28.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
31. 31.What does the Wi-Fi link do? (a) stores data online (b) measures the real world (c) reads values, decides (d) carries the data
32. 32.🏠 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
33. 33.What does the cloud server do? (a) reads values, decides (b) carries the data (c) stores data online (d) acts on a command
34. 34.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
36. 36.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
37. 37.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi smart plug (d) a battery torch
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
39. 39.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
40. 40.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a battery torch (d) a plain wall switch

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