Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 927 · 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) acts on a command (b) carries the data (c) stores data online (d) measures the real world
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
4. 4.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a wind-up clock (d) a pencil sharpener
5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
6. 6.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
7. 7.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) phone app (d) Wi-Fi
9. 9.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) phone app (d) sensor
10. 10.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
11. 11.Which of these is not an IoT device? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
12. 12.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
13. 13.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
15. 15.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
18. 18.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a fitness band with app (d) a plain table fan
19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
20. 20.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a pencil sharpener (d) a smart energy meter
21. 21.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
22. 22.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
23. 23.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi doorbell camera
24. 24.What does the phone app do? (a) stores data online (b) acts on a command (c) reads values, decides (d) shows data to you
25. 25.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
27. 27.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a smart energy meter
28. 28.🔢 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
29. 29.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
35. 35.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) sensor (d) Wi-Fi
36. 36.What does the cloud server do? (a) acts on a command (b) carries the data (c) shows data to you (d) stores data online
37. 37.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
39. 39.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain table fan
40. 40.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device

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