Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 635 · 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 pencil sharpener (b) a fitness band with app (c) a paper calendar (d) a battery torch
2. 2.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a plain wall switch (d) a plain table fan
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
5. 5.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
6. 6.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) sensor (d) phone app
7. 7.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain wall switch (d) a fitness band with app
8. 8.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
10. 10.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a paper calendar (d) a wind-up clock
11. 11.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) actuator (d) sensor
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain table fan (d) an app-controlled bulb
14. 14.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
17. 17.🔢 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
18. 18.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi smart plug (d) a wind-up clock
19. 19.What does the phone app do? (a) shows data to you (b) reads values, decides (c) carries the data (d) stores data online
20. 20.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
21. 21.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a wind-up clock (d) a smart energy meter
22. 22.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a paper calendar (d) a Wi-Fi smart plug
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a smart energy meter (d) a plain wall switch
24. 24.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
25. 25.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) cloud server (d) phone app
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
27. 27.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) cloud server (d) sensor
29. 29.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) microcontroller (d) phone app
30. 30.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
32. 32.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a Wi-Fi smart plug (d) a fitness band with app
33. 33.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) reads values, decides (d) stores data online
34. 34.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
35. 35.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a smart energy meter
36. 36.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
37. 37.What does the sensor do? (a) stores data online (b) measures the real world (c) carries the data (d) reads values, decides
38. 38.🔢 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
39. 39.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?

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