Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 354 · 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 5 seconds. How many readings does it send in 4 minutes?
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a pencil sharpener (d) a paper calendar
4. 4.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) sensor (d) phone app
5. 5.What does the sensor do? (a) shows data to you (b) stores data online (c) reads values, decides (d) measures the real world
6. 6.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
8. 8.Which of these is not an IoT device? (a) a plain table fan (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
9. 9.What does the microcontroller do? (a) acts on a command (b) stores data online (c) reads values, decides (d) shows data to you
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) an app-controlled bulb (d) a pencil sharpener
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
13. 13.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi smart plug
15. 15.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
16. 16.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
17. 17.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
19. 19.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a wind-up clock
22. 22.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
23. 23.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
24. 24.What does the cloud server do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
26. 26.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
29. 29.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain wall switch (d) a pencil sharpener
30. 30.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
31. 31.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a Wi-Fi smart plug (d) an app-controlled bulb
32. 32.What does the phone app do? (a) carries the data (b) reads values, decides (c) shows data to you (d) stores data online
33. 33.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) cloud server (c) microcontroller (d) actuator
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
35. 35.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
36. 36.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a wind-up clock (d) a fitness band with app
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
38. 38.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?

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