Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 575 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
3. 3.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a fitness band with app (d) a smart energy meter
4. 4.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🏠 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
6. 6.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi weather station
7. 7.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) Wi-Fi (d) phone app
8. 8.🔍 Which is the odd one out? (a) a plain table fan (b) a fitness band with app (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
9. 9.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
11. 11.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a plain wall switch (d) a paper calendar
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
13. 13.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
14. 14.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain table fan (d) a battery torch
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
16. 16.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) phone app (c) sensor (d) microcontroller
17. 17.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
18. 18.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi weather station (d) a pencil sharpener
20. 20.What does the actuator do? (a) measures the real world (b) shows data to you (c) acts on a command (d) reads values, decides
21. 21.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a plain wall switch
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
23. 23.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) phone app (c) cloud server (d) actuator
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
25. 25.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a plain table fan (d) a pencil sharpener
26. 26.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi weather station (d) a wind-up clock
27. 27.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a plain table fan (d) a Wi-Fi doorbell camera
28. 28.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) Wi-Fi (d) microcontroller
30. 30.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) carries the data (d) stores data online
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
32. 32.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
33. 33.What does the phone app do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
34. 34.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a smart energy meter (d) a paper calendar
35. 35.What does the cloud server do? (a) measures the real world (b) shows data to you (c) stores data online (d) reads values, decides
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
37. 37.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) stores data online
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
39. 39.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) microcontroller (d) Wi-Fi
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?

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