Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 809 · 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 measures the real world? (a) phone app (b) Wi-Fi (c) actuator (d) sensor
2. 2.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
3. 3.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a paper calendar
4. 4.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
5. 5.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) actuator (c) phone app (d) microcontroller
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
7. 7.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi smart plug (d) a fitness band with app
8. 8.What does the actuator do? (a) acts on a command (b) carries the data (c) reads values, decides (d) measures the real world
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
10. 10.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) cloud server (d) microcontroller
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
12. 12.🏠 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
13. 13.What does the sensor do? (a) acts on a command (b) carries the data (c) measures the real world (d) shows data to you
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
15. 15.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) Wi-Fi (d) phone app
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
17. 17.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
18. 18.Which of these is an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a paper calendar (d) a plain table fan
19. 19.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
21. 21.🌐 In an IoT system, which part carries the data? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
23. 23.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a plain table fan (d) a wind-up clock
24. 24.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi smart plug
25. 25.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) measures the real world (d) acts on a command
26. 26.🔢 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
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
28. 28.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi smart plug (d) a fitness band with app
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
30. 30.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) Wi-Fi (c) cloud server (d) actuator
31. 31.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
32. 32.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
34. 34.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain wall switch
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a wind-up clock (d) a Wi-Fi doorbell camera
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
38. 38.What does the microcontroller do? (a) measures the real world (b) shows data to you (c) acts on a command (d) reads values, decides
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
40. 40.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi

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