Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 374 · 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 fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
2. 2.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a paper calendar
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a Wi-Fi weather station (d) a fitness band with app
4. 4.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
5. 5.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
6. 6.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) Wi-Fi (d) sensor
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
8. 8.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
9. 9.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
10. 10.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a battery torch
11. 11.🌐 In an IoT system, which part stores data online? (a) actuator (b) Wi-Fi (c) cloud server (d) sensor
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
13. 13.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) cloud server (d) microcontroller
14. 14.Which of these is not an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi smart plug (d) an app-controlled bulb
15. 15.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
16. 16.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
17. 17.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
20. 20.What does the cloud server do? (a) stores data online (b) acts on a command (c) measures the real world (d) reads values, decides
21. 21.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) carries the data
22. 22.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) phone app (d) microcontroller
23. 23.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
24. 24.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a battery torch (d) an app-controlled bulb
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
28. 28.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
29. 29.What does the actuator do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) carries the data
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
31. 31.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a fitness band with app (d) a Wi-Fi smart plug
32. 32.🌐 In an IoT system, which part carries the data? (a) phone app (b) actuator (c) Wi-Fi (d) microcontroller
33. 33.🔢 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
34. 34.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a smart energy meter (d) a plain table fan
35. 35.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a plain table fan (d) a Wi-Fi smart plug
36. 36.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a pencil sharpener (d) a paper calendar
37. 37.What does the sensor do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online
38. 38.🔢 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) the board reads it (d) it is sent by Wi-Fi
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a paper calendar (d) a fitness band with app
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?

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