Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 972 · 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 of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a battery torch (d) a plain table fan
2. 2.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
3. 3.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
4. 4.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain table fan (d) a smart energy meter
5. 5.🌐 In an IoT system, which part stores data online? (a) actuator (b) sensor (c) cloud server (d) microcontroller
6. 6.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
7. 7.What does the actuator do? (a) acts on a command (b) shows data to you (c) stores data online (d) measures the real world
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
11. 11.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) stores data online (d) acts on a command
12. 12.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) Wi-Fi (d) sensor
13. 13.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a plain wall switch
14. 14.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a smart energy meter (d) a plain table fan
16. 16.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 wind-up clock
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
18. 18.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
19. 19.What does the cloud server do? (a) measures the real world (b) carries the data (c) stores data online (d) reads values, decides
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
21. 21.What does the phone app do? (a) acts on a command (b) shows data to you (c) carries the data (d) measures the real world
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi doorbell camera
23. 23.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
24. 24.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain wall switch (d) a fitness band with app
26. 26.What does the Wi-Fi link do? (a) stores data online (b) shows data to you (c) acts on a command (d) carries the data
27. 27.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
32. 32.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
33. 33.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) sensor (d) cloud server
34. 34.Which of these is an IoT device? (a) a fitness band with app (b) a battery torch (c) a pencil sharpener (d) a plain table fan
35. 35.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) Wi-Fi (d) sensor
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a smart energy meter (d) a plain table fan
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?

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