Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 923 · 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 a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
2. 2.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a pencil sharpener (d) a Wi-Fi smart plug
3. 3.What does the cloud server do? (a) measures the real world (b) stores data online (c) carries the data (d) acts on a command
4. 4.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a smart energy meter (d) a fitness band with app
5. 5.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) cloud server (d) Wi-Fi
6. 6.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) Wi-Fi (c) actuator (d) microcontroller
7. 7.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
8. 8.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
10. 10.What does the phone app do? (a) carries the data (b) acts on a command (c) shows data to you (d) measures the real world
11. 11.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
13. 13.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
15. 15.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) phone app (d) Wi-Fi
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
17. 17.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
18. 18.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
19. 19.Which of these is not an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi smart plug
20. 20.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) an app-controlled bulb (d) a plain wall switch
21. 21.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi weather station
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi weather station
24. 24.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
26. 26.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi smart plug (d) a battery torch
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
28. 28.🌐 Is a paper calendar 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.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) Wi-Fi (d) microcontroller
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
32. 32.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
34. 34.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) acts on a command (d) measures the real world
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
36. 36.What does the sensor do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
37. 37.What does the actuator do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) shows data to you
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
39. 39.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) a Wi-Fi weather station
40. 40.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools

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