Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 547 · 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.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
2. 2.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
3. 3.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) Wi-Fi (c) sensor (d) cloud server
4. 4.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) sensor (d) actuator
6. 6.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) phone app (d) actuator
7. 7.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain wall switch (d) an app-controlled bulb
8. 8.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain table fan (d) a Wi-Fi weather station
9. 9.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
11. 11.What does the cloud server do? (a) acts on a command (b) stores data online (c) reads values, decides (d) shows data to you
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
14. 14.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station
15. 15.What does the actuator do? (a) measures the real world (b) acts on a command (c) carries the data (d) shows data to you
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
18. 18.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
19. 19.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) sensor (d) actuator
20. 20.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
23. 23.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a battery torch
24. 24.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
25. 25.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
26. 26.🔢 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
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
29. 29.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
32. 32.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a battery torch (d) a Wi-Fi smart plug
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
34. 34.What does the microcontroller do? (a) stores data online (b) shows data to you (c) reads values, decides (d) acts on a command
35. 35.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a fitness band with app (d) an app-controlled bulb
36. 36.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi smart plug (d) an app-controlled bulb
37. 37.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a battery torch (d) a plain table fan
38. 38.What does the phone app do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) stores data online
39. 39.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device

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