Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 149 · 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.What does the phone app do? (a) measures the real world (b) shows data to you (c) stores data online (d) acts on a command
2. 2.What does the microcontroller do? (a) stores data online (b) carries the data (c) reads values, decides (d) measures the real world
3. 3.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
4. 4.🔢 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
5. 5.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
6. 6.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a smart energy meter
8. 8.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
12. 12.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
13. 13.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
14. 14.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a fitness band with app (d) a smart energy meter
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
20. 20.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a battery torch (d) a plain table fan
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
24. 24.What does the actuator do? (a) acts on a command (b) reads values, decides (c) stores data online (d) measures the real world
25. 25.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
26. 26.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
27. 27.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi smart plug
28. 28.Which of these is an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a plain wall switch (d) a battery torch
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
30. 30.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
31. 31.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
32. 32.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) actuator (d) phone app
33. 33.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) Wi-Fi (d) actuator
34. 34.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain table fan
35. 35.What does the sensor do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
37. 37.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi doorbell camera
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a plain wall switch (d) an app-controlled bulb
39. 39.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi weather station (d) a battery torch
40. 40.🔢 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

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