Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 308 · 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.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
2. 2.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) Wi-Fi (d) sensor
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a Wi-Fi weather station (d) a fitness band with app
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
5. 5.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a pencil sharpener
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a plain wall switch (d) a wind-up clock
7. 7.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a plain table fan (d) a pencil sharpener
8. 8.What does the phone app do? (a) shows data to you (b) carries the data (c) stores data online (d) measures the real world
9. 9.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a fitness band with app
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
11. 11.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a plain wall switch
12. 12.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
14. 14.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
15. 15.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi doorbell camera
16. 16.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
17. 17.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a pencil sharpener
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
19. 19.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a wind-up clock
20. 20.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a Wi-Fi weather station (d) a smart energy meter
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
23. 23.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
24. 24.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a fitness band with app (d) a wind-up clock
25. 25.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
27. 27.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
28. 28.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain wall switch (d) a paper calendar
29. 29.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
30. 30.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) phone app (d) actuator
31. 31.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
34. 34.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a battery torch (d) a paper calendar
35. 35.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) shows data to you (d) carries the data
36. 36.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🏠 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
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
39. 39.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?

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