Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 591 · 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 soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
2. 2.🌐 In an IoT system, which part shows data to you? (a) phone app (b) Wi-Fi (c) cloud server (d) actuator
3. 3.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
5. 5.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
6. 6.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) reads values, decides (d) measures the real world
7. 7.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a plain table fan (d) a plain wall switch
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
9. 9.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
10. 10.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a fitness band with app
11. 11.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
12. 12.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a smart energy meter (d) a plain table fan
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
14. 14.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
15. 15.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
17. 17.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
18. 18.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) an app-controlled bulb
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
20. 20.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a plain wall switch (d) a wind-up clock
21. 21.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
22. 22.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a pencil sharpener (d) a plain table fan
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
24. 24.What does the actuator do? (a) carries the data (b) shows data to you (c) stores data online (d) acts on a command
25. 25.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a fitness band with app (d) a plain table fan
26. 26.🔢 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
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
31. 31.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a fitness band with app (d) a battery torch
32. 32.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
33. 33.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
38. 38.What does the phone app do? (a) shows data to you (b) carries the data (c) acts on a command (d) reads values, decides
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
40. 40.🌐 In an IoT system, which part carries the data? (a) phone app (b) sensor (c) Wi-Fi (d) cloud server

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