Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 320 · 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 of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a plain wall switch (d) a battery torch
2. 2.What does the cloud server do? (a) stores data online (b) measures the real world (c) acts on a command (d) carries the data
3. 3.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a pencil sharpener (d) a battery torch
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
7. 7.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
9. 9.What does the Wi-Fi link do? (a) shows data to you (b) stores data online (c) carries the data (d) reads values, decides
10. 10.Which of these is not an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a smart energy meter
11. 11.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a paper calendar (d) an app-controlled bulb
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
13. 13.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
14. 14.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a fitness band with app
15. 15.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a battery torch (d) a paper calendar
16. 16.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
19. 19.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain wall switch
21. 21.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
23. 23.What does the sensor do? (a) stores data online (b) measures the real world (c) reads values, decides (d) carries the data
24. 24.🔢 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
25. 25.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) actuator (d) phone app
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
27. 27.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
28. 28.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) actuator (c) phone app (d) cloud server
29. 29.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi smart plug
30. 30.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
31. 31.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) cloud server (d) sensor
33. 33.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
34. 34.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
35. 35.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi doorbell camera
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
39. 39.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
40. 40.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi doorbell camera

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