Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 314 · 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.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) cloud server (d) phone app
2. 2.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi weather station (d) a wind-up clock
3. 3.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) microcontroller (d) cloud server
4. 4.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) carries the data (d) measures the real world
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
6. 6.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi weather station
7. 7.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a paper calendar (d) an app-controlled bulb
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
9. 9.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
10. 10.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🔢 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) the board reads it (d) it is sent by Wi-Fi
12. 12.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a fitness band with app
13. 13.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a wind-up clock (d) a pencil sharpener
14. 14.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
15. 15.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a paper calendar
16. 16.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
20. 20.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
21. 21.🔢 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
22. 22.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain wall switch
23. 23.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) sensor (c) actuator (d) microcontroller
24. 24.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
25. 25.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a smart energy meter (d) a pencil sharpener
26. 26.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
27. 27.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
29. 29.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
31. 31.What does the actuator do? (a) stores data online (b) acts on a command (c) carries the data (d) measures the real world
32. 32.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a wind-up clock
33. 33.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) phone app (d) cloud server
34. 34.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
35. 35.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a pencil sharpener
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
37. 37.🌐 In an IoT system, which part carries the data? (a) cloud server (b) phone app (c) sensor (d) Wi-Fi
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
39. 39.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a plain table fan (d) a paper calendar
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?

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