Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 313 · 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.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) Wi-Fi (d) microcontroller
3. 3.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
5. 5.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a smart energy meter
6. 6.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
8. 8.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) measures the real world (d) reads values, decides
9. 9.🔢 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
10. 10.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi weather station (d) a plain table fan
11. 11.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
12. 12.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
13. 13.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
16. 16.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a pencil sharpener (d) a battery torch
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
18. 18.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
19. 19.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a paper calendar
20. 20.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi smart plug
21. 21.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a battery torch (d) an app-controlled bulb
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a paper calendar (d) a plain table fan
24. 24.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a paper calendar
25. 25.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
26. 26.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
28. 28.🌐 In an IoT system, which part acts on a command? (a) sensor (b) cloud server (c) microcontroller (d) actuator
29. 29.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a pencil sharpener (d) a fitness band with app
31. 31.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) cloud server (c) microcontroller (d) sensor
32. 32.What does the sensor do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) stores data online
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
34. 34.🔢 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 sensor measures (d) the app shows it
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
37. 37.🔢 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
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a battery torch
39. 39.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?

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