Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 435 · 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 app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it
3. 3.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
4. 4.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
5. 5.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a paper calendar (d) a plain table fan
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
7. 7.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
8. 8.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
9. 9.What does the sensor do? (a) shows data to you (b) reads values, decides (c) carries the data (d) measures the real world
10. 10.What does the cloud server do? (a) shows data to you (b) measures the real world (c) stores data online (d) carries the data
11. 11.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
12. 12.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
14. 14.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a wind-up clock
15. 15.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a smart energy meter
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
20. 20.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) shows data to you (d) acts on a command
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a fitness band with app (d) a battery torch
23. 23.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
24. 24.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) cloud server (c) phone app (d) sensor
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain table fan
27. 27.What does the actuator do? (a) shows data to you (b) acts on a command (c) stores data online (d) reads values, decides
28. 28.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
30. 30.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a fitness band with app (d) a Wi-Fi doorbell camera
31. 31.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a fitness band with app (d) a Wi-Fi doorbell camera
32. 32.What does the phone app do? (a) shows data to you (b) stores data online (c) reads values, decides (d) measures the real world
33. 33.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi weather station
35. 35.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi doorbell camera
36. 36.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
38. 38.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
39. 39.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a pencil sharpener (d) a wind-up clock
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?

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