Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 680 · 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.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) microcontroller (d) sensor
3. 3.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) phone app (c) cloud server (d) sensor
4. 4.🔢 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
5. 5.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a smart energy meter (d) a paper calendar
7. 7.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) actuator (d) cloud server
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
9. 9.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) microcontroller (d) phone app
10. 10.🌐 In an IoT system, which part carries the data? (a) cloud server (b) phone app (c) microcontroller (d) Wi-Fi
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
12. 12.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
14. 14.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
15. 15.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a plain wall switch
16. 16.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
18. 18.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
19. 19.What does the actuator do? (a) measures the real world (b) stores data online (c) acts on a command (d) reads values, decides
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
21. 21.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
22. 22.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
23. 23.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
25. 25.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
26. 26.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
27. 27.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
28. 28.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
29. 29.What does the microcontroller do? (a) carries the data (b) measures the real world (c) reads values, decides (d) shows data to you
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
31. 31.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi weather station (d) a wind-up clock
32. 32.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a wind-up clock (d) an app-controlled bulb
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
35. 35.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a plain wall switch (d) a wind-up clock
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
37. 37.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a battery torch (d) a Wi-Fi smart plug
38. 38.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a wind-up clock (d) an app-controlled bulb
39. 39.What does the cloud server do? (a) shows data to you (b) measures the real world (c) stores data online (d) carries the data
40. 40.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device

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