Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 361 · 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 a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
2. 2.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
3. 3.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) sensor (d) actuator
4. 4.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
5. 5.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) stores data online (d) measures the real world
6. 6.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a plain wall switch (d) a wind-up clock
7. 7.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi smart plug
8. 8.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) microcontroller (d) sensor
9. 9.What does the sensor do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
10. 10.What does the microcontroller do? (a) carries the data (b) acts on a command (c) reads values, decides (d) shows data to you
11. 11.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi doorbell camera
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
15. 15.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) actuator (c) sensor (d) phone app
16. 16.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) cloud server (c) phone app (d) microcontroller
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
18. 18.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
20. 20.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
21. 21.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
22. 22.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
23. 23.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a paper calendar (d) a battery torch
24. 24.🔍 Which is the odd one out? (a) a wind-up clock (b) a fitness band with app (c) an app-controlled bulb (d) a smart energy meter
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
26. 26.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
27. 27.What does the phone app do? (a) carries the data (b) acts on a command (c) shows data to you (d) reads values, decides
28. 28.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
30. 30.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a paper calendar (d) a plain table fan
33. 33.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a plain wall switch (d) a smart energy meter
34. 34.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a battery torch
35. 35.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
39. 39.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi

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