Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 310 · 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.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) sensor (d) microcontroller
2. 2.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
3. 3.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
4. 4.What does the actuator do? (a) carries the data (b) shows data to you (c) measures the real world (d) acts on a command
5. 5.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) carries the data (d) shows data to you
6. 6.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
7. 7.Which of these is an IoT device? (a) a plain table fan (b) a fitness band with app (c) a plain wall switch (d) a paper calendar
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
9. 9.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi weather station
10. 10.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) sensor (d) phone app
11. 11.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a battery torch
12. 12.🔍 Which is the odd one out? (a) a wind-up clock (b) a fitness band with app (c) a plain wall switch (d) a paper calendar
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
14. 14.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
15. 15.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a battery torch
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
17. 17.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
18. 18.Which of these is not an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
19. 19.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
21. 21.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
22. 22.🌐 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
23. 23.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
25. 25.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
26. 26.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a paper calendar
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
31. 31.What does the sensor do? (a) stores data online (b) measures the real world (c) carries the data (d) reads values, decides
32. 32.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi smart plug
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
37. 37.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi smart plug
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
40. 40.Which of these is not an IoT device? (a) a plain table fan (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi smart plug

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