Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 624 · 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 Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) carries the data
2. 2.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi weather station
3. 3.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
4. 4.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) actuator (d) sensor
5. 5.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) actuator (d) sensor
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
7. 7.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
8. 8.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a battery torch (d) an app-controlled bulb
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
10. 10.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
13. 13.🔢 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
14. 14.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
16. 16.Which of these is not an IoT device? (a) a plain table fan (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi weather station
17. 17.Which of these is not an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
18. 18.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) microcontroller (d) sensor
19. 19.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) carries the data (d) reads values, decides
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
21. 21.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
23. 23.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi weather station (d) a battery torch
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
26. 26.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a wind-up clock (d) a plain table fan
27. 27.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
29. 29.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a pencil sharpener
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
31. 31.What does the actuator do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
32. 32.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) cloud server (d) Wi-Fi
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
34. 34.What does the phone app do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a smart energy meter (d) a Wi-Fi doorbell camera
36. 36.🌐 In an IoT system, which part stores data online? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
38. 38.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a battery torch
39. 39.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) stores data online (d) measures the real world
40. 40.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain table fan

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