Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 287 · 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 is the FIRST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
2. 2.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
4. 4.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain wall switch
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain wall switch
6. 6.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
7. 7.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
12. 12.What does the cloud server do? (a) stores data online (b) measures the real world (c) carries the data (d) reads values, decides
13. 13.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
14. 14.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) actuator (d) microcontroller
15. 15.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
17. 17.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
19. 19.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a fitness band with app (d) a pencil sharpener
20. 20.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) sensor (d) actuator
21. 21.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a battery torch (d) a plain wall switch
22. 22.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi weather station (d) a plain wall switch
23. 23.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a paper calendar (d) a Wi-Fi smart plug
24. 24.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a plain table fan (d) a pencil sharpener
25. 25.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain table fan
26. 26.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
28. 28.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a plain table fan (d) a paper calendar
29. 29.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) phone app (d) microcontroller
30. 30.🌐 In an IoT system, which part stores data online? (a) phone app (b) microcontroller (c) cloud server (d) sensor
31. 31.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a Wi-Fi smart plug
32. 32.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
33. 33.What does the sensor do? (a) acts on a command (b) carries the data (c) reads values, decides (d) measures the real world
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
35. 35.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a Wi-Fi smart plug
36. 36.What does the phone app do? (a) reads values, decides (b) measures the real world (c) carries the data (d) shows data to you
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
38. 38.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?

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