Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 877 · 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) a battery torch (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a plain wall switch
2. 2.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
4. 4.What does the phone app do? (a) acts on a command (b) stores data online (c) shows data to you (d) carries the data
5. 5.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a plain wall switch (d) a paper calendar
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
8. 8.What does the actuator do? (a) shows data to you (b) stores data online (c) measures the real world (d) acts on a command
9. 9.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the sensor measures
11. 11.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
12. 12.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
15. 15.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a battery torch (d) a Wi-Fi smart plug
16. 16.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) sensor (d) cloud server
17. 17.What does the microcontroller do? (a) shows data to you (b) carries the data (c) reads values, decides (d) acts on a command
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
19. 19.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) microcontroller (d) cloud server
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a fitness band with app (d) a plain wall switch
21. 21.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a smart energy meter (d) a paper calendar
22. 22.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) phone app (d) sensor
23. 23.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
25. 25.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) cloud server (d) microcontroller
26. 26.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) shows data to you (d) measures the real world
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
29. 29.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
32. 32.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a wind-up clock (d) a fitness band with app
33. 33.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi doorbell camera
35. 35.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi weather station
36. 36.Which of these is not an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
37. 37.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
38. 38.What does the cloud server do? (a) carries the data (b) stores data online (c) acts on a command (d) measures the real world
39. 39.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a pencil sharpener (d) a fitness band with app

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