Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 931 · 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, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
2. 2.What does the microcontroller do? (a) measures the real world (b) carries the data (c) reads values, decides (d) shows data to you
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
4. 4.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a plain table fan (d) a smart energy meter
5. 5.🌐 In an IoT system, which part stores data online? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
6. 6.What does the sensor do? (a) reads values, decides (b) acts on a command (c) carries the data (d) measures the real world
7. 7.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
8. 8.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a wind-up clock (d) a fitness band with app
9. 9.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a smart energy meter (d) a wind-up clock
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi smart plug (d) a wind-up clock
12. 12.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
14. 14.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a battery torch (d) a plain wall switch
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station
17. 17.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a battery torch (d) a smart energy meter
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
21. 21.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
22. 22.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
24. 24.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) phone app (d) microcontroller
25. 25.What does the phone app do? (a) measures the real world (b) stores data online (c) acts on a command (d) shows data to you
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi weather station (d) an app-controlled bulb
28. 28.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a pencil sharpener (d) a Wi-Fi smart plug
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
30. 30.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a Wi-Fi smart plug (d) a smart energy meter
32. 32.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) an app-controlled bulb (d) a battery torch
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
35. 35.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a wind-up clock (d) a Wi-Fi doorbell camera
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
37. 37.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
39. 39.What does the actuator do? (a) acts on a command (b) stores data online (c) reads values, decides (d) carries the data
40. 40.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a battery torch (d) a paper calendar

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