Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 963 · 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 soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
2. 2.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a battery torch (d) a paper calendar
3. 3.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
4. 4.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
6. 6.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) a fitness band with app
8. 8.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) cloud server (d) microcontroller
9. 9.🔢 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
10. 10.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a smart energy meter (d) a Wi-Fi doorbell camera
11. 11.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a paper calendar (d) an app-controlled bulb
12. 12.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
14. 14.What does the phone app do? (a) reads values, decides (b) measures the real world (c) stores data online (d) shows data to you
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
16. 16.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 In an IoT system, which part carries the data? (a) actuator (b) phone app (c) sensor (d) Wi-Fi
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
20. 20.What does the actuator do? (a) carries the data (b) shows data to you (c) reads values, decides (d) acts on a command
21. 21.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) an app-controlled bulb (d) a plain table fan
23. 23.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
25. 25.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a paper calendar
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
27. 27.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain wall switch
28. 28.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
30. 30.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a smart energy meter
33. 33.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
34. 34.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a pencil sharpener
35. 35.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a fitness band with app
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) microcontroller (d) cloud server
38. 38.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
39. 39.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a pencil sharpener (d) a paper calendar
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?

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