Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 239 · 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.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
2. 2.What does the cloud server do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) stores data online
3. 3.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a Wi-Fi weather station (d) a wind-up clock
4. 4.🔢 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
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
6. 6.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
8. 8.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
9. 9.🔢 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
10. 10.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a paper calendar
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a pencil sharpener
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
13. 13.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) sensor (d) phone app
14. 14.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures
16. 16.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a wind-up clock (d) an app-controlled bulb
17. 17.What does the Wi-Fi link do? (a) measures the real world (b) acts on a command (c) stores data online (d) carries the data
18. 18.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
19. 19.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
20. 20.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
22. 22.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a pencil sharpener (d) a smart energy meter
23. 23.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) actuator (d) phone app
24. 24.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
25. 25.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi smart plug (d) a paper calendar
27. 27.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi smart plug (d) a battery torch
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
29. 29.Which of these is not an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi weather station (d) an app-controlled bulb
30. 30.What does the sensor do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
31. 31.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a smart energy meter
32. 32.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
35. 35.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a smart energy meter (d) a battery torch
37. 37.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) stores data online (d) acts on a command
38. 38.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?

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