Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 93 · 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 of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a smart energy meter
2. 2.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 In an IoT system, which part stores data online? (a) actuator (b) sensor (c) cloud server (d) Wi-Fi
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
5. 5.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a pencil sharpener (d) an app-controlled bulb
6. 6.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a paper calendar (d) a battery torch
7. 7.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
8. 8.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) phone app (c) sensor (d) microcontroller
9. 9.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
11. 11.What does the cloud server do? (a) reads values, decides (b) stores data online (c) measures the real world (d) acts on a command
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
13. 13.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a Wi-Fi weather station
14. 14.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
17. 17.🔢 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) the sensor measures (d) it is sent by Wi-Fi
18. 18.🔢 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
19. 19.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a paper calendar (d) a wind-up clock
20. 20.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
21. 21.What does the actuator do? (a) shows data to you (b) carries the data (c) measures the real world (d) acts on a command
22. 22.Which of these is not an IoT device? (a) a paper calendar (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi weather station
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
24. 24.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a plain table fan (d) a battery torch
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
27. 27.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a plain table fan (d) a paper calendar
28. 28.What does the sensor do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) stores data online
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
31. 31.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) measures the real world (d) carries the data
32. 32.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a Wi-Fi weather station
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
34. 34.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
35. 35.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
36. 36.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
37. 37.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) phone app (d) microcontroller
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a battery torch
39. 39.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain table fan

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