Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 190 · 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 15 seconds. How many readings does it send in 3 minutes?
2. 2.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
3. 3.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi smart plug
4. 4.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) phone app (c) cloud server (d) microcontroller
5. 5.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
6. 6.What does the microcontroller do? (a) carries the data (b) shows data to you (c) stores data online (d) reads values, decides
7. 7.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
9. 9.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
10. 10.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
11. 11.What does the actuator do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
12. 12.What does the sensor do? (a) measures the real world (b) carries the data (c) shows data to you (d) reads values, decides
13. 13.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain wall switch (d) an app-controlled bulb
14. 14.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
16. 16.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
17. 17.What does the cloud server do? (a) measures the real world (b) carries the data (c) acts on a command (d) stores data online
18. 18.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) phone app (d) actuator
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
20. 20.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a fitness band with app
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
22. 22.What does the Wi-Fi link do? (a) measures the real world (b) reads values, decides (c) stores data online (d) carries the data
23. 23.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
28. 28.🔢 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) it is sent by Wi-Fi (d) the app shows it
29. 29.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
32. 32.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) microcontroller (c) sensor (d) actuator
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
34. 34.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
38. 38.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
39. 39.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
40. 40.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device

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