Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 218 · 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 plain table fan (b) a plain wall switch (c) a battery torch (d) a Wi-Fi doorbell camera
2. 2.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
3. 3.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a plain wall switch (d) a pencil sharpener
4. 4.What does the microcontroller do? (a) stores data online (b) carries the data (c) acts on a command (d) reads values, decides
5. 5.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
6. 6.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a smart energy meter
7. 7.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
9. 9.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi smart plug
10. 10.🔢 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
11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
12. 12.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) an app-controlled bulb (d) a pencil sharpener
13. 13.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a pencil sharpener (d) a fitness band with app
14. 14.🌐 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
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
16. 16.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) sensor (d) cloud server
17. 17.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
18. 18.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
19. 19.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
21. 21.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) Wi-Fi (d) sensor
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
23. 23.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
24. 24.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a smart energy meter (d) a fitness band with app
25. 25.What does the Wi-Fi link do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) carries the data
26. 26.What does the sensor do? (a) shows data to you (b) stores data online (c) measures the real world (d) reads values, decides
27. 27.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) stores data online (d) acts on a command
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
29. 29.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
31. 31.What does the phone app do? (a) shows data to you (b) measures the real world (c) stores data online (d) reads values, decides
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
33. 33.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
34. 34.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
36. 36.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain wall switch
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain table fan (d) an app-controlled bulb
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
39. 39.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi smart plug (d) a smart energy meter
40. 40.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) actuator (d) sensor

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