Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 595 · 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) a fitness band with app (d) a paper calendar
2. 2.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) Wi-Fi (c) microcontroller (d) sensor
3. 3.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
4. 4.What does the actuator do? (a) carries the data (b) measures the real world (c) stores data online (d) acts on a command
5. 5.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
6. 6.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a battery torch (d) a Wi-Fi smart plug
7. 7.🌐 In an IoT system, which part acts on a command? (a) phone app (b) cloud server (c) microcontroller (d) actuator
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
10. 10.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a fitness band with app (d) a Wi-Fi weather station
11. 11.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) actuator (d) cloud server
12. 12.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a pencil sharpener
13. 13.🔢 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
14. 14.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a battery torch
15. 15.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a fitness band with app (d) a smart energy meter
16. 16.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
18. 18.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
20. 20.What does the sensor do? (a) shows data to you (b) carries the data (c) acts on a command (d) measures the real world
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
22. 22.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) sensor (d) phone app
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
25. 25.What does the phone app do? (a) carries the data (b) shows data to you (c) acts on a command (d) reads values, decides
26. 26.🔢 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 sensor measures (d) the app shows it
27. 27.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi smart plug (d) an app-controlled bulb
28. 28.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) phone app (d) Wi-Fi
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
30. 30.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a plain table fan (d) an app-controlled bulb
31. 31.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a battery torch (d) a smart energy meter
32. 32.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
35. 35.What does the cloud server do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
37. 37.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a paper calendar (d) a smart energy meter
38. 38.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) carries the data
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi weather station
40. 40.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device

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