Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 448 · 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.🔢 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
2. 2.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a paper calendar (d) a battery torch
3. 3.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
4. 4.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) Wi-Fi (d) cloud server
5. 5.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
7. 7.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a Wi-Fi smart plug
8. 8.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
9. 9.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
13. 13.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a pencil sharpener (d) a fitness band with app
14. 14.What does the Wi-Fi link do? (a) shows data to you (b) stores data online (c) measures the real world (d) carries the data
15. 15.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
16. 16.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a smart energy meter (d) a pencil sharpener
17. 17.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain table fan
18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a Wi-Fi weather station (d) a wind-up clock
19. 19.🌐 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
20. 20.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
22. 22.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
23. 23.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a wind-up clock (d) a battery torch
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
26. 26.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
28. 28.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a battery torch (d) a paper calendar
29. 29.What does the actuator do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
31. 31.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) an app-controlled bulb
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
33. 33.What does the phone app do? (a) measures the real world (b) reads values, decides (c) stores data online (d) shows data to you
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
35. 35.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) microcontroller (d) cloud server
36. 36.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a battery torch (d) a pencil sharpener
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
39. 39.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) an app-controlled bulb (d) a paper calendar
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?

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