Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 913 · 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) microcontroller (b) actuator (c) sensor (d) phone app
2. 2.🔢 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) it is sent by Wi-Fi
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
4. 4.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
5. 5.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) actuator (d) Wi-Fi
7. 7.What does the sensor do? (a) shows data to you (b) stores data online (c) measures the real world (d) carries the data
8. 8.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi weather station (d) a fitness band with app
9. 9.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a fitness band with app (d) an app-controlled bulb
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a smart energy meter
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
12. 12.What does the actuator do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
14. 14.What does the phone app do? (a) stores data online (b) measures the real world (c) shows data to you (d) acts on a command
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a fitness band with app (d) an app-controlled bulb
17. 17.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
18. 18.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain table fan
19. 19.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a wind-up clock (d) a paper calendar
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
21. 21.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
22. 22.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a battery torch (d) a paper calendar
23. 23.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) actuator (c) phone app (d) sensor
24. 24.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
25. 25.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) actuator (d) phone app
26. 26.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
29. 29.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi doorbell camera
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
33. 33.🌐 In an IoT system, which part stores data online? (a) actuator (b) Wi-Fi (c) sensor (d) cloud server
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
39. 39.🔢 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
40. 40.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device

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