Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 888 · 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 of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a fitness band with app
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
3. 3.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a pencil sharpener (d) a fitness band with app
5. 5.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a Wi-Fi weather station (d) an app-controlled bulb
6. 6.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a pencil sharpener (d) a smart energy meter
7. 7.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
8. 8.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a fitness band with app
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain wall switch
10. 10.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a paper calendar (d) a plain wall switch
11. 11.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) cloud server (c) actuator (d) phone app
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
14. 14.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
15. 15.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
17. 17.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) sensor (d) actuator
18. 18.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) sensor (d) Wi-Fi
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
22. 22.What does the sensor do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) acts on a command
23. 23.🌐 In an IoT system, which part acts on a command? (a) phone app (b) sensor (c) actuator (d) Wi-Fi
24. 24.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
25. 25.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
27. 27.What does the Wi-Fi link do? (a) measures the real world (b) reads values, decides (c) stores data online (d) carries the data
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
29. 29.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a battery torch (d) a plain table fan
30. 30.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) an app-controlled bulb
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
35. 35.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
36. 36.What does the actuator do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) carries the data
37. 37.🌐 In an IoT system, which part carries the data? (a) cloud server (b) actuator (c) phone app (d) Wi-Fi
38. 38.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
39. 39.What does the phone app do? (a) stores data online (b) carries the data (c) acts on a command (d) shows data to you
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