Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 552 · 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.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
3. 3.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) an app-controlled bulb (d) a pencil sharpener
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
5. 5.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a plain table fan (d) a plain wall switch
6. 6.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🏠 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
8. 8.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) Wi-Fi (c) phone app (d) actuator
9. 9.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you
10. 10.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) an app-controlled bulb
11. 11.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi weather station
12. 12.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
15. 15.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) microcontroller (d) sensor
16. 16.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
17. 17.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
21. 21.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi weather station
22. 22.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) an app-controlled bulb
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
24. 24.What does the microcontroller do? (a) stores data online (b) measures the real world (c) acts on a command (d) reads values, decides
25. 25.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) phone app (c) actuator (d) sensor
27. 27.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain table fan (d) an app-controlled bulb
30. 30.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a plain wall switch (d) a paper calendar
31. 31.What does the phone app do? (a) reads values, decides (b) measures the real world (c) carries the data (d) shows data to you
32. 32.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a pencil sharpener
34. 34.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) sensor (d) microcontroller
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
37. 37.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
40. 40.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?

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