Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 82 · 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 15 minutes. How many readings arrive in 5 hours?
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
4. 4.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
6. 6.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a paper calendar
7. 7.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) actuator (c) microcontroller (d) sensor
8. 8.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi smart plug
9. 9.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a plain table fan (d) a smart energy meter
11. 11.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
12. 12.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
13. 13.What does the Wi-Fi link do? (a) stores data online (b) shows data to you (c) carries the data (d) reads values, decides
14. 14.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
15. 15.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
16. 16.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
18. 18.What does the sensor do? (a) measures the real world (b) carries the data (c) shows data to you (d) reads values, decides
19. 19.🔢 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
20. 20.What does the phone app do? (a) shows data to you (b) carries the data (c) acts on a command (d) stores data online
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
22. 22.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
23. 23.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a paper calendar (d) a battery torch
24. 24.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
25. 25.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
26. 26.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a paper calendar (d) an app-controlled bulb
27. 27.🔢 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
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
29. 29.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a pencil sharpener (d) a fitness band with app
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
31. 31.🔢 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 board reads it (d) the cloud stores it
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a battery torch
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
35. 35.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
36. 36.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) an app-controlled bulb
37. 37.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) sensor (d) phone app
38. 38.🔢 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 app shows it (d) the sensor measures
39. 39.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) stores data online (d) measures the real world
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?

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