Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 56 · 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 paper calendar (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi smart plug
2. 2.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a plain wall switch
3. 3.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain table fan
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
6. 6.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) microcontroller (d) sensor
7. 7.What does the Wi-Fi link do? (a) shows data to you (b) reads values, decides (c) carries the data (d) measures the real world
8. 8.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a battery torch
9. 9.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a smart energy meter (d) a wind-up clock
10. 10.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
11. 11.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) cloud server (d) actuator
12. 12.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a Wi-Fi weather station
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
14. 14.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a battery torch
15. 15.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
16. 16.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a wind-up clock (d) a Wi-Fi doorbell camera
17. 17.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
18. 18.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) actuator (c) sensor (d) phone app
19. 19.What does the phone app do? (a) carries the data (b) shows data to you (c) acts on a command (d) measures the real world
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a Wi-Fi smart plug (d) a pencil sharpener
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
22. 22.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🔢 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
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
26. 26.What does the cloud server do? (a) reads values, decides (b) stores data online (c) acts on a command (d) carries the data
27. 27.🔢 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
28. 28.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
29. 29.🔢 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
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
31. 31.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a pencil sharpener (d) a fitness band with app
32. 32.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
35. 35.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a wind-up clock (d) a plain wall switch
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
38. 38.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
40. 40.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app

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