Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 117 · 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 cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
3. 3.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain wall switch
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
5. 5.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
6. 6.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
7. 7.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) an app-controlled bulb
8. 8.Which of these is an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a wind-up clock (d) a paper calendar
9. 9.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
11. 11.What does the phone app do? (a) reads values, decides (b) measures the real world (c) carries the data (d) shows data to you
12. 12.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) microcontroller (d) phone app
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a pencil sharpener (d) a smart energy meter
14. 14.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a smart energy meter (d) a plain wall switch
15. 15.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) actuator (d) phone app
16. 16.What does the actuator do? (a) measures the real world (b) acts on a command (c) carries the data (d) stores data online
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
18. 18.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a fitness band with app (d) a smart energy meter
19. 19.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
21. 21.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
22. 22.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
26. 26.What does the sensor do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
27. 27.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) carries the data (d) acts on a command
28. 28.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a battery torch (d) a smart energy meter
29. 29.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
32. 32.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a wind-up clock (d) a fitness band with app
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
35. 35.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
37. 37.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a smart energy meter (d) a wind-up clock
38. 38.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain table fan
39. 39.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) microcontroller

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