Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 739 · 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 is the odd one out? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a plain wall switch
2. 2.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
3. 3.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
4. 4.What does the actuator do? (a) measures the real world (b) stores data online (c) shows data to you (d) acts on a command
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a fitness band with app (d) a pencil sharpener
6. 6.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
7. 7.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
8. 8.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) actuator (d) cloud server
9. 9.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a wind-up clock (d) a battery torch
10. 10.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
12. 12.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a paper calendar (d) a battery torch
13. 13.What does the cloud server do? (a) reads values, decides (b) carries the data (c) stores data online (d) measures the real world
14. 14.What does the sensor do? (a) shows data to you (b) measures the real world (c) acts on a command (d) reads values, decides
15. 15.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
16. 16.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a plain table fan (d) a plain wall switch
17. 17.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) sensor (d) phone app
18. 18.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) phone app (d) cloud server
20. 20.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
21. 21.🔢 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
22. 22.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) carries the data
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
24. 24.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
26. 26.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a battery torch
27. 27.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
28. 28.What does the phone app do? (a) acts on a command (b) shows data to you (c) stores data online (d) carries the data
29. 29.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a wind-up clock (d) a plain wall switch
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a battery torch (d) a plain wall switch
31. 31.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) a plain wall switch (d) a battery torch
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
35. 35.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
36. 36.Which of these is not an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi weather station (d) a fitness band with app
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a paper calendar (d) a pencil sharpener
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
39. 39.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a battery torch (d) an app-controlled bulb
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?

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