Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 142 · 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 the Wi-Fi link do? (a) stores data online (b) carries the data (c) measures the real world (d) acts on a command
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) an app-controlled bulb (d) a fitness band with app
3. 3.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) actuator (c) phone app (d) cloud server
4. 4.What does the microcontroller do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) carries the data
5. 5.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) actuator (d) cloud server
6. 6.What does the phone app do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
10. 10.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
13. 13.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi smart plug
14. 14.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
15. 15.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) microcontroller (d) Wi-Fi
16. 16.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) actuator (d) microcontroller
17. 17.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a plain table fan (d) a pencil sharpener
18. 18.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a battery torch (d) a smart energy meter
20. 20.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
22. 22.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
23. 23.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
24. 24.Which of these is an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a paper calendar (d) a plain wall switch
25. 25.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) actuator (d) phone app
26. 26.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
28. 28.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a plain table fan (d) a Wi-Fi smart plug
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
32. 32.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
33. 33.What does the actuator do? (a) measures the real world (b) carries the data (c) acts on a command (d) shows data to you
34. 34.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a fitness band with app
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
36. 36.What does the cloud server do? (a) carries the data (b) shows data to you (c) reads values, decides (d) stores data online
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
38. 38.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) Wi-Fi (d) phone app
39. 39.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
40. 40.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a smart energy meter (d) a plain wall switch

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