Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 525 · 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 is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a plain wall switch
2. 2.What does the cloud server do? (a) reads values, decides (b) carries the data (c) shows data to you (d) stores data online
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
4. 4.🔢 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
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
6. 6.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a Wi-Fi smart plug (d) a fitness band with app
7. 7.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
8. 8.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a battery torch (d) a smart energy meter
9. 9.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a paper calendar
10. 10.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a smart energy meter (d) a plain table fan
11. 11.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
13. 13.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
14. 14.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
15. 15.What does the actuator do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) shows data to you
16. 16.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
18. 18.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) microcontroller (d) phone app
19. 19.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
20. 20.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a fitness band with app
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
22. 22.What does the microcontroller do? (a) carries the data (b) measures the real world (c) acts on a command (d) reads values, decides
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
24. 24.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a Wi-Fi smart plug (d) an app-controlled bulb
25. 25.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
29. 29.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
31. 31.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) cloud server (d) actuator
33. 33.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a plain wall switch (d) a plain table fan
34. 34.What does the sensor do? (a) reads values, decides (b) measures the real world (c) carries the data (d) acts on a command
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
36. 36.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a Wi-Fi weather station (d) an app-controlled bulb
37. 37.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi weather station
38. 38.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) an app-controlled bulb (d) a plain table fan
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
40. 40.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) Wi-Fi (d) phone app

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