Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 569 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
2. 2.What does the Wi-Fi link do? (a) acts on a command (b) reads values, decides (c) stores data online (d) carries the data
3. 3.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) actuator (d) phone app
4. 4.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
5. 5.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
6. 6.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi weather station (d) an app-controlled bulb
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
8. 8.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
9. 9.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a plain table fan (d) a Wi-Fi doorbell camera
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
11. 11.What does the sensor do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) shows data to you
12. 12.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
13. 13.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a wind-up clock (d) a battery torch
14. 14.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) a Wi-Fi doorbell camera
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
16. 16.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
17. 17.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi doorbell camera
18. 18.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi weather station (d) an app-controlled bulb
19. 19.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 In an IoT system, which part carries the data? (a) cloud server (b) microcontroller (c) phone app (d) Wi-Fi
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
22. 22.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
23. 23.What does the phone app do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
25. 25.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a plain table fan (d) a fitness band with app
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
27. 27.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
28. 28.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a paper calendar
29. 29.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a plain wall switch (d) a smart energy meter
30. 30.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) an app-controlled bulb (d) a fitness band with app
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
32. 32.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
35. 35.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a pencil sharpener (d) a battery torch
36. 36.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a pencil sharpener (d) a plain table fan
37. 37.What does the actuator do? (a) reads values, decides (b) measures the real world (c) carries the data (d) acts on a command
38. 38.🔢 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
39. 39.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
40. 40.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device

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