Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 40 · 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.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
2. 2.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
4. 4.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
5. 5.🔢 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
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
7. 7.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi smart plug (d) a plain wall switch
8. 8.Which of these is an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a pencil sharpener (d) a paper calendar
9. 9.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) actuator (d) phone app
12. 12.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a plain table fan
13. 13.🌐 In an IoT system, which part shows data to you? (a) phone app (b) actuator (c) cloud server (d) microcontroller
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
17. 17.What does the sensor do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
19. 19.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
21. 21.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) actuator (d) microcontroller
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
23. 23.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) phone app (d) sensor
24. 24.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
25. 25.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a smart energy meter (d) a paper calendar
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
27. 27.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
28. 28.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a pencil sharpener
29. 29.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
30. 30.Which of these is not an IoT device? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
31. 31.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
32. 32.What does the phone app do? (a) reads values, decides (b) measures the real world (c) stores data online (d) shows data to you
33. 33.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
35. 35.What does the cloud server do? (a) carries the data (b) measures the real world (c) reads values, decides (d) stores data online
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
37. 37.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) an app-controlled bulb (d) a plain table fan
39. 39.🔢 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
40. 40.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a paper calendar

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