Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 621 · 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.What does the actuator do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) carries the data
2. 2.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) sensor (d) actuator
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
4. 4.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
5. 5.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) an app-controlled bulb
6. 6.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
7. 7.What does the sensor do? (a) carries the data (b) acts on a command (c) measures the real world (d) reads values, decides
8. 8.What does the microcontroller do? (a) stores data online (b) acts on a command (c) measures the real world (d) reads values, decides
9. 9.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a plain table fan (d) a plain wall switch
10. 10.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) microcontroller (d) Wi-Fi
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
12. 12.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi weather station
13. 13.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
16. 16.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a battery torch
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi smart plug
20. 20.What does the phone app do? (a) measures the real world (b) reads values, decides (c) carries the data (d) shows data to you
21. 21.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi smart plug
22. 22.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
23. 23.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
25. 25.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
26. 26.Which of these is not an IoT device? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
27. 27.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a battery torch (d) a plain table fan
28. 28.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
29. 29.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi smart plug
30. 30.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a battery torch (d) a smart energy meter
32. 32.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a plain table fan (d) a pencil sharpener
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) an app-controlled bulb (d) a smart energy meter
34. 34.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
37. 37.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) phone app (d) actuator
38. 38.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
39. 39.What does the cloud server do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?

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