Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 496 · 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.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
3. 3.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a smart energy meter
4. 4.What does the phone app do? (a) stores data online (b) carries the data (c) shows data to you (d) reads values, decides
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
6. 6.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
7. 7.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
8. 8.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
10. 10.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) phone app (c) Wi-Fi (d) cloud server
11. 11.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
12. 12.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) microcontroller (d) phone app
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
15. 15.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
16. 16.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a smart energy meter (d) a plain table fan
17. 17.What does the microcontroller do? (a) stores data online (b) acts on a command (c) reads values, decides (d) carries the data
18. 18.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
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
20. 20.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
26. 26.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
27. 27.What does the sensor do? (a) measures the real world (b) reads values, decides (c) stores data online (d) carries the data
28. 28.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) an app-controlled bulb (d) a wind-up clock
29. 29.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
31. 31.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
32. 32.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
33. 33.Which of these is not an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a smart energy meter
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
36. 36.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) an app-controlled bulb (d) a paper calendar
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
39. 39.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a fitness band with app
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi

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