Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 181 · 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.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
2. 2.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a battery torch
3. 3.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
4. 4.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) carries the data (d) stores data online
5. 5.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
7. 7.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) actuator (d) phone app
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a battery torch
10. 10.What does the sensor do? (a) acts on a command (b) reads values, decides (c) stores data online (d) measures the real world
11. 11.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) cloud server (d) microcontroller
12. 12.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a paper calendar
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
14. 14.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi smart plug (d) a fitness band with app
15. 15.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
16. 16.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a smart energy meter
17. 17.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) Wi-Fi (d) sensor
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
19. 19.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
21. 21.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
23. 23.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
25. 25.Which of these is an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a pencil sharpener (d) a paper calendar
26. 26.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
27. 27.🌐 In an IoT system, which part stores data online? (a) cloud server (b) Wi-Fi (c) sensor (d) actuator
28. 28.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
29. 29.What does the Wi-Fi link do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
30. 30.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi smart plug
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
32. 32.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
34. 34.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain wall switch
35. 35.What does the phone app do? (a) reads values, decides (b) shows data to you (c) stores data online (d) acts on a command
36. 36.What does the actuator do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?

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