Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 205 · 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.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi weather station
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
4. 4.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi smart plug
5. 5.🔢 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
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi doorbell camera
8. 8.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
10. 10.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) actuator (d) Wi-Fi
11. 11.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) phone app (d) microcontroller
12. 12.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
13. 13.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi smart plug (d) a pencil sharpener
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
19. 19.What does the sensor do? (a) acts on a command (b) carries the data (c) reads values, decides (d) measures the real world
20. 20.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a pencil sharpener (d) a wind-up clock
21. 21.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a battery torch (d) a fitness band with app
22. 22.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
23. 23.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
24. 24.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi doorbell camera
25. 25.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
26. 26.What does the actuator do? (a) stores data online (b) carries the data (c) reads values, decides (d) acts on a command
27. 27.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
30. 30.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) phone app (c) cloud server (d) microcontroller
31. 31.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
32. 32.Which of these is an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a battery torch (d) a plain table fan
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
34. 34.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) shows data to you (d) acts on a command
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a smart energy meter (d) a plain table fan
38. 38.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) Wi-Fi (d) actuator
39. 39.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures

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