Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 694 · 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.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
2. 2.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a battery torch
3. 3.🌐 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
4. 4.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a fitness band with app (d) a battery torch
6. 6.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
7. 7.What does the microcontroller do? (a) acts on a command (b) measures the real world (c) shows data to you (d) reads values, decides
8. 8.What does the cloud server do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) stores data online
9. 9.🔢 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
10. 10.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain table fan
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
14. 14.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi weather station (d) a paper calendar
15. 15.What does the actuator do? (a) stores data online (b) measures the real world (c) acts on a command (d) shows data to you
16. 16.What does the sensor do? (a) reads values, decides (b) shows data to you (c) stores data online (d) measures the real world
17. 17.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi weather station (d) a battery torch
18. 18.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
19. 19.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a Wi-Fi weather station (d) a plain wall switch
20. 20.🌐 In an IoT system, which part carries the data? (a) phone app (b) sensor (c) Wi-Fi (d) cloud server
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a smart energy meter (d) a paper calendar
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
25. 25.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi smart plug (d) a battery torch
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a battery torch (d) a Wi-Fi smart plug
27. 27.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a wind-up clock
28. 28.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) stores data online (d) measures the real world
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
30. 30.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
33. 33.🌐 In an IoT system, which part shows data to you? (a) phone app (b) actuator (c) microcontroller (d) cloud server
34. 34.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
35. 35.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a smart energy meter
36. 36.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
37. 37.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
38. 38.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) an app-controlled bulb (d) a smart energy meter
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures

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