Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 774 · 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.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) phone app (c) actuator (d) cloud server
2. 2.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) an app-controlled bulb (d) a fitness band with app
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
6. 6.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
7. 7.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
8. 8.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
9. 9.What does the phone app do? (a) acts on a command (b) measures the real world (c) shows data to you (d) carries the data
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi smart plug
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
13. 13.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the sensor measures
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a smart energy meter (d) a battery torch
15. 15.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) cloud server (d) phone app
16. 16.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
18. 18.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a plain table fan
19. 19.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a paper calendar (d) a battery torch
20. 20.Which of these is not an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a fitness band with app (d) a smart energy meter
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
22. 22.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
23. 23.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a fitness band with app
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
25. 25.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
26. 26.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a pencil sharpener (d) a wind-up clock
27. 27.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station
28. 28.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
29. 29.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
30. 30.🔢 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
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a wind-up clock (d) an app-controlled bulb
34. 34.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
35. 35.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi weather station
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
38. 38.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) phone app (c) sensor (d) microcontroller
39. 39.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
40. 40.What does the cloud server do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you

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