Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 730 · 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 Wi-Fi smart plug (b) a plain wall switch (c) a paper calendar (d) a pencil sharpener
2. 2.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
3. 3.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a fitness band with app (d) a pencil sharpener
4. 4.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
5. 5.What does the phone app do? (a) shows data to you (b) reads values, decides (c) carries the data (d) measures the real world
6. 6.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a battery torch (d) a Wi-Fi doorbell camera
7. 7.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
8. 8.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi smart plug
9. 9.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
10. 10.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
11. 11.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
12. 12.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a wind-up clock
13. 13.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a wind-up clock (d) a battery torch
16. 16.🌐 In an IoT system, which part acts on a command? (a) sensor (b) cloud server (c) actuator (d) microcontroller
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
18. 18.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a plain wall switch
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
21. 21.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a plain wall switch (d) a paper calendar
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
23. 23.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
24. 24.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) microcontroller (d) sensor
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
26. 26.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a wind-up clock (d) a plain wall switch
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) Wi-Fi (c) cloud server (d) microcontroller
32. 32.🔢 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
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain table fan
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
36. 36.Which of these is not an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a fitness band with app
37. 37.What does the actuator do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) shows data to you
38. 38.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) acts on a command
39. 39.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a wind-up clock (d) an app-controlled bulb
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?

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