Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 517 · 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.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a battery torch
2. 2.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain wall switch
3. 3.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a fitness band with app
4. 4.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) an app-controlled bulb (d) a smart energy meter
5. 5.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
6. 6.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
7. 7.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a wind-up clock (d) a plain wall switch
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) the board reads it
10. 10.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) an app-controlled bulb
11. 11.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
13. 13.What does the sensor do? (a) stores data online (b) shows data to you (c) measures the real world (d) carries the data
14. 14.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 In an IoT system, which part stores data online? (a) actuator (b) sensor (c) phone app (d) cloud server
16. 16.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
17. 17.🔢 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
18. 18.What does the Wi-Fi link do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) carries the data
19. 19.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a battery torch (d) a paper calendar
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
21. 21.What does the phone app do? (a) measures the real world (b) shows data to you (c) carries the data (d) acts on a command
22. 22.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a candle in a jar (d) a printed map
23. 23.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a fitness band with app (d) a smart energy meter
24. 24.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a plain wall switch (d) a paper calendar
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a paper calendar
26. 26.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) Wi-Fi (d) microcontroller
27. 27.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi doorbell camera
28. 28.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a pencil sharpener
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
33. 33.What does the microcontroller do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) carries the data
34. 34.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
38. 38.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) an app-controlled bulb (d) a smart energy meter
39. 39.Which of these is not an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi doorbell camera
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi weather station

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