Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 788 · 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 acts on a command? (a) microcontroller (b) Wi-Fi (c) cloud server (d) actuator
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
3. 3.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
5. 5.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) actuator (d) phone app
6. 6.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi smart plug (d) a fitness band with app
8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
10. 10.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
12. 12.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a fitness band with app (d) a Wi-Fi weather station
13. 13.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
14. 14.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) Wi-Fi (d) microcontroller
15. 15.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
16. 16.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
17. 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
18. 18.What does the actuator do? (a) carries the data (b) stores data online (c) shows data to you (d) acts on a command
19. 19.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
21. 21.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) phone app (d) microcontroller
22. 22.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a smart energy meter (d) a battery torch
23. 23.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
24. 24.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) actuator (d) cloud server
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
27. 27.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a fitness band with app (d) a pencil sharpener
28. 28.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
29. 29.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi weather station
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
31. 31.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi weather station (d) a fitness band with app
32. 32.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
33. 33.What does the sensor do? (a) stores data online (b) carries the data (c) shows data to you (d) measures the real world
34. 34.Which of these is not an IoT device? (a) a fitness band with app (b) a plain table fan (c) a Wi-Fi smart plug (d) a smart energy meter
35. 35.Which of these is an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a plain table fan (d) a plain wall switch
36. 36.What does the cloud server do? (a) acts on a command (b) reads values, decides (c) stores data online (d) carries the data
37. 37.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a wind-up clock (d) a Wi-Fi doorbell camera
38. 38.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a plain wall switch (d) a smart energy meter
40. 40.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi smart plug (d) a wind-up clock

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