Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 283 · 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.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) cloud server (d) microcontroller
2. 2.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a smart energy meter
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
4. 4.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) microcontroller (d) phone app
5. 5.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
6. 6.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) measures the real world (d) reads values, decides
7. 7.Which of these is not an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a fitness band with app (d) a Wi-Fi weather station
8. 8.What does the actuator do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
9. 9.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a battery torch (d) a Wi-Fi weather station
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
11. 11.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
12. 12.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
13. 13.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a plain wall switch (d) a wind-up clock
14. 14.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi smart plug (d) a paper calendar
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
16. 16.Which of these is not an IoT device? (a) a fitness band with app (b) a plain table fan (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
18. 18.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
20. 20.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
21. 21.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
23. 23.🔢 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
24. 24.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
25. 25.What does the sensor do? (a) carries the data (b) reads values, decides (c) shows data to you (d) measures the real world
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
28. 28.Which of these is an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a battery torch (d) a plain table fan
29. 29.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
32. 32.What does the phone app do? (a) stores data online (b) shows data to you (c) acts on a command (d) measures the real world
33. 33.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
37. 37.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain wall switch
40. 40.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device

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