Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 91 · 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 not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain wall switch
2. 2.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a fitness band with app (d) an app-controlled bulb
3. 3.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) Wi-Fi (d) microcontroller
4. 4.What does the sensor do? (a) stores data online (b) shows data to you (c) reads values, decides (d) measures the real world
5. 5.🔢 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 board reads it (c) the sensor measures (d) the app shows it
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
8. 8.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
9. 9.What does the phone app do? (a) acts on a command (b) shows data to you (c) carries the data (d) measures the real world
10. 10.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a fitness band with app (d) a paper calendar
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
14. 14.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
15. 15.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) sensor (d) Wi-Fi
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
17. 17.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a Wi-Fi weather station (d) a battery torch
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
19. 19.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
21. 21.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) Wi-Fi (d) cloud server
22. 22.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
23. 23.What does the cloud server do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
24. 24.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) stores data online
25. 25.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a paper calendar (d) a smart energy meter
26. 26.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi smart plug
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
28. 28.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
29. 29.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi smart plug
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a wind-up clock (d) a fitness band with app
31. 31.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
32. 32.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
33. 33.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) reads values, decides (d) acts on a command
34. 34.🌐 In an IoT system, which part shows data to you? (a) phone app (b) actuator (c) sensor (d) microcontroller
35. 35.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) phone app (d) sensor
37. 37.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
40. 40.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a wind-up clock (d) a plain wall switch

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