Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 821 · 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 10 minutes. How many readings arrive in 1 hour?
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the cloud stores it
3. 3.What does the sensor do? (a) carries the data (b) measures the real world (c) shows data to you (d) acts on a command
4. 4.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) microcontroller (d) phone app
5. 5.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) an app-controlled bulb (d) a plain table fan
6. 6.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a battery torch (d) a Wi-Fi weather station
8. 8.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) actuator (d) Wi-Fi
9. 9.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
10. 10.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a pencil sharpener
11. 11.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) sensor (d) Wi-Fi
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
13. 13.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a printed map (d) a hand fan
14. 14.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a battery torch (d) a Wi-Fi weather station
15. 15.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
17. 17.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) phone app (c) sensor (d) actuator
18. 18.What does the actuator do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
19. 19.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
20. 20.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a paper calendar (d) an app-controlled bulb
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) the app shows it
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
24. 24.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
26. 26.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain wall switch (d) a fitness band with app
28. 28.What does the cloud server do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
30. 30.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
31. 31.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi weather station
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
34. 34.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
36. 36.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
38. 38.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
39. 39.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
40. 40.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) measures the real world (d) acts on a command

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