Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 273 · 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 smart energy meter (b) a fitness band with app (c) a battery torch (d) a Wi-Fi weather station
2. 2.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a plain wall switch (d) a fitness band with app
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi weather station
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
5. 5.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
6. 6.What does the cloud server do? (a) shows data to you (b) stores data online (c) reads values, decides (d) carries the data
7. 7.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) an app-controlled bulb
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a battery torch
9. 9.🔢 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
10. 10.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi weather station (d) a fitness band with app
12. 12.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) an app-controlled bulb (d) a battery torch
13. 13.What does the sensor do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) carries the data
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a paper calendar (d) a Wi-Fi smart plug
19. 19.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
20. 20.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
21. 21.🏠 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
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the board reads it
23. 23.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a fitness band with app
24. 24.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a battery torch (d) a plain wall switch
25. 25.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a battery torch (d) a plain wall switch
26. 26.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
29. 29.What does the microcontroller do? (a) shows data to you (b) measures the real world (c) stores data online (d) reads values, decides
30. 30.🔢 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) it is sent by Wi-Fi
31. 31.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) reads values, decides (d) shows data to you
32. 32.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
36. 36.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) microcontroller (d) cloud server
37. 37.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a plain table fan (d) a Wi-Fi weather station
38. 38.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) cloud server (c) microcontroller (d) sensor
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?

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