Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 74 · 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.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
3. 3.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
4. 4.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
5. 5.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a paper calendar (d) an app-controlled bulb
6. 6.What does the sensor do? (a) measures the real world (b) reads values, decides (c) stores data online (d) acts on a command
7. 7.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
8. 8.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain wall switch
9. 9.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a wind-up clock (d) a paper calendar
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
11. 11.What does the actuator do? (a) reads values, decides (b) acts on a command (c) carries the data (d) measures the real world
12. 12.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a wind-up clock
13. 13.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a fitness band with app (d) a wind-up clock
14. 14.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
16. 16.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
18. 18.What does the cloud server do? (a) acts on a command (b) stores data online (c) shows data to you (d) reads values, decides
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
21. 21.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
22. 22.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) shows data to you (d) reads values, decides
23. 23.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) Wi-Fi (d) phone app
24. 24.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi weather station
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
26. 26.What does the microcontroller do? (a) carries the data (b) shows data to you (c) reads values, decides (d) measures the real world
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
28. 28.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi doorbell camera (d) a fitness band with app
29. 29.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
31. 31.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
35. 35.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) sensor (d) Wi-Fi
36. 36.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi doorbell camera
37. 37.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain table fan
39. 39.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a wind-up clock (d) a plain wall switch
40. 40.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device

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