Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 939 · 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 Wi-Fi weather station (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi smart plug
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
3. 3.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
4. 4.What does the Wi-Fi link do? (a) shows data to you (b) acts on a command (c) carries the data (d) measures the real world
5. 5.What does the sensor do? (a) measures the real world (b) carries the data (c) shows data to you (d) acts on a command
6. 6.What does the phone app do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) stores data online
7. 7.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi smart plug
9. 9.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
12. 12.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a wind-up clock (d) a battery torch
13. 13.What does the cloud server do? (a) measures the real world (b) shows data to you (c) carries the data (d) stores data online
14. 14.🔢 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
15. 15.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
17. 17.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
20. 20.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain wall switch (d) a battery torch
21. 21.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
23. 23.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 In an IoT system, which part acts on a command? (a) phone app (b) microcontroller (c) cloud server (d) actuator
25. 25.🔢 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
26. 26.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
28. 28.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a Wi-Fi smart plug (d) a pencil sharpener
29. 29.Which of these is not an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a smart energy meter
30. 30.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) actuator (c) cloud server (d) Wi-Fi
31. 31.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) an app-controlled bulb (d) a plain wall switch
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a smart energy meter (d) a fitness band with app
34. 34.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a fitness band with app (d) a plain table fan
35. 35.🔢 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 board reads it (d) the app shows it
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
37. 37.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) microcontroller (d) Wi-Fi
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
39. 39.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
40. 40.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) sensor (d) cloud server

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