Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 682 · 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 stores data online? (a) sensor (b) microcontroller (c) cloud server (d) actuator
2. 2.🌐 In an IoT system, which part carries the data? (a) cloud server (b) sensor (c) Wi-Fi (d) phone app
3. 3.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
5. 5.What does the actuator do? (a) shows data to you (b) measures the real world (c) stores data online (d) acts on a command
6. 6.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a pencil sharpener (d) a Wi-Fi smart plug
7. 7.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) Wi-Fi (d) cloud server
8. 8.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a wind-up clock (d) a plain wall switch
9. 9.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
10. 10.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a smart energy meter (d) a wind-up clock
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
12. 12.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi weather station
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
15. 15.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
16. 16.What does the sensor do? (a) stores data online (b) acts on a command (c) measures the real world (d) carries the data
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a fitness band with app
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
19. 19.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
21. 21.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) an app-controlled bulb (d) a pencil sharpener
22. 22.What does the microcontroller do? (a) carries the data (b) measures the real world (c) stores data online (d) reads values, decides
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
24. 24.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
25. 25.🔢 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
26. 26.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a pencil sharpener (d) a fitness band with app
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
28. 28.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
29. 29.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
30. 30.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
32. 32.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) an app-controlled bulb (d) a smart energy meter
33. 33.🏠 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
34. 34.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it
35. 35.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
36. 36.What does the Wi-Fi link do? (a) acts on a command (b) measures the real world (c) shows data to you (d) carries the data
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
38. 38.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a paper calendar (d) a Wi-Fi smart plug
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 Wi-Fi doorbell camera
40. 40.🔢 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

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids