Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 282 · 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.🔢 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
2. 2.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
3. 3.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) phone app (d) Wi-Fi
4. 4.🏠 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
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
6. 6.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) a pencil sharpener (d) a plain wall switch
7. 7.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) cloud server (d) phone app
8. 8.🔢 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 board reads it (d) the sensor measures
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
11. 11.What does the cloud server do? (a) measures the real world (b) stores data online (c) acts on a command (d) reads values, decides
12. 12.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a Wi-Fi smart plug (d) a wind-up clock
13. 13.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
14. 14.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a wind-up clock
15. 15.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
17. 17.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) an app-controlled bulb
19. 19.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) an app-controlled bulb (d) a Wi-Fi smart plug
20. 20.What does the microcontroller do? (a) shows data to you (b) acts on a command (c) stores data online (d) reads values, decides
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
22. 22.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) sensor (c) microcontroller (d) Wi-Fi
23. 23.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
24. 24.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi weather station
25. 25.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a pencil sharpener
26. 26.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a fitness band with app (d) a battery torch
28. 28.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) measures the real world (d) acts on a command
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
30. 30.🔢 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
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
33. 33.🔢 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
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
35. 35.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) cloud server (d) phone app
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
37. 37.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi weather station
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?

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