Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 298 · 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) shows data to you (b) acts on a command (c) carries the data (d) stores data online
2. 2.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) phone app (d) sensor
3. 3.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
4. 4.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) an app-controlled bulb (d) a plain wall switch
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
6. 6.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
8. 8.What does the cloud server do? (a) measures the real world (b) stores data online (c) reads values, decides (d) carries the data
9. 9.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a fitness band with app (d) a paper calendar
10. 10.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🔢 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
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a battery torch (d) an app-controlled bulb
14. 14.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
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 actuator do? (a) carries the data (b) acts on a command (c) stores data online (d) shows data to you
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) a smart energy meter
20. 20.Which of these is an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a wind-up clock (d) a pencil sharpener
21. 21.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain table fan
22. 22.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
23. 23.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a fitness band with app (d) an app-controlled bulb
24. 24.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
27. 27.🌐 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
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a smart energy meter
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
33. 33.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
35. 35.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi weather station (d) a wind-up clock
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi smart plug
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
38. 38.What does the phone app do? (a) stores data online (b) shows data to you (c) acts on a command (d) reads values, decides
39. 39.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) actuator (d) phone app
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?

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