Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 816 · 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.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) sensor (d) phone app
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
3. 3.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
4. 4.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
5. 5.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
7. 7.What does the cloud server do? (a) measures the real world (b) stores data online (c) carries the data (d) reads values, decides
8. 8.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) actuator (d) cloud server
9. 9.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) phone app (d) Wi-Fi
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
11. 11.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a wind-up clock
12. 12.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
13. 13.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) actuator
14. 14.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) an app-controlled bulb (d) a plain table fan
15. 15.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
16. 16.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi smart plug
17. 17.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
19. 19.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a plain wall switch (d) a fitness band with app
20. 20.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) stores data online (d) acts on a command
21. 21.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain wall switch (d) a paper calendar
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
23. 23.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
24. 24.🔢 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
25. 25.What does the phone app do? (a) carries the data (b) acts on a command (c) shows data to you (d) stores data online
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
27. 27.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
28. 28.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
30. 30.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a pencil sharpener
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
35. 35.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
36. 36.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi smart plug
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
38. 38.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) Wi-Fi (d) phone app
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?

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