Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 667 · 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) an app-controlled bulb (c) a plain wall switch (d) a pencil sharpener
2. 2.Which of these is not an IoT device? (a) a plain wall switch (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi weather station
3. 3.Which of these is an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a battery torch (d) a paper calendar
4. 4.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
5. 5.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
6. 6.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) shows data to you (d) acts on a command
7. 7.🔢 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
8. 8.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) cloud server (d) microcontroller
9. 9.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a wind-up clock (d) a paper calendar
10. 10.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) sensor (d) Wi-Fi
11. 11.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
13. 13.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
14. 14.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) carries the data (d) acts on a command
15. 15.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
16. 16.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) actuator (d) microcontroller
17. 17.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
18. 18.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a paper calendar (d) a Wi-Fi weather station
19. 19.What does the phone app do? (a) reads values, decides (b) shows data to you (c) stores data online (d) carries the data
20. 20.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
22. 22.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
25. 25.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi weather station
26. 26.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) phone app (c) microcontroller (d) cloud server
27. 27.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
28. 28.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a Wi-Fi weather station (d) an app-controlled bulb
29. 29.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
31. 31.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) cloud server (d) Wi-Fi
32. 32.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
34. 34.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
36. 36.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
37. 37.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a plain table fan (d) an app-controlled bulb
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
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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