Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 306 · 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 sensor do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
2. 2.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a battery torch
3. 3.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a wind-up clock (d) a Wi-Fi smart plug
4. 4.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
6. 6.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a Wi-Fi weather station (d) a paper calendar
7. 7.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) microcontroller (d) phone app
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a plain table fan
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
11. 11.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
13. 13.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
15. 15.What does the microcontroller do? (a) stores data online (b) shows data to you (c) reads values, decides (d) measures the real world
16. 16.🔢 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
17. 17.What does the actuator do? (a) carries the data (b) stores data online (c) measures the real world (d) acts on a command
18. 18.🌐 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
19. 19.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
20. 20.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) cloud server (d) actuator
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
22. 22.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
23. 23.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
24. 24.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
25. 25.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi weather station (d) a battery torch
26. 26.What does the phone app do? (a) measures the real world (b) stores data online (c) shows data to you (d) acts on a command
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
28. 28.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
31. 31.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) phone app (d) microcontroller
32. 32.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a pencil sharpener
34. 34.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a fitness band with app (d) a plain wall switch
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
36. 36.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a wind-up clock
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
38. 38.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) measures the real world (d) reads values, decides
39. 39.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a battery torch (d) a smart energy meter
40. 40.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi doorbell camera

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