Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 135 · 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.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
2. 2.What does the cloud server do? (a) stores data online (b) carries the data (c) measures the real world (d) reads values, decides
3. 3.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a plain wall switch (d) a smart energy meter
5. 5.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a fitness band with app (d) an app-controlled bulb
6. 6.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
8. 8.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
9. 9.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
11. 11.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) actuator (d) sensor
12. 12.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
13. 13.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
15. 15.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) actuator (d) cloud server
16. 16.🔢 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
17. 17.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a fitness band with app (d) a plain table fan
18. 18.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a battery torch (d) an app-controlled bulb
19. 19.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a wind-up clock (d) a Wi-Fi doorbell camera
20. 20.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) microcontroller (d) phone app
21. 21.🌐 In an IoT system, which part stores data online? (a) phone app (b) Wi-Fi (c) actuator (d) cloud server
22. 22.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
23. 23.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
24. 24.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi smart plug (d) a paper calendar
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) an app-controlled bulb
27. 27.What does the actuator do? (a) measures the real world (b) stores data online (c) acts on a command (d) reads values, decides
28. 28.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
30. 30.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi weather station
31. 31.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a paper calendar (d) a wind-up clock
32. 32.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
34. 34.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a smart energy meter (d) a pencil sharpener
36. 36.What does the phone app do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) shows data to you
37. 37.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
40. 40.What does the sensor do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world

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