Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 414 · 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.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
2. 2.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
3. 3.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a paper calendar
6. 6.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) microcontroller (d) Wi-Fi
7. 7.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) phone app (d) microcontroller
8. 8.🌐 In an IoT system, which part stores data online? (a) phone app (b) actuator (c) cloud server (d) Wi-Fi
9. 9.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a fitness band with app (d) a paper calendar
10. 10.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain wall switch
12. 12.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a battery torch (d) a wind-up clock
13. 13.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
14. 14.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
17. 17.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a fitness band with app
18. 18.What does the Wi-Fi link do? (a) stores data online (b) measures the real world (c) carries the data (d) reads values, decides
19. 19.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
21. 21.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
22. 22.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
24. 24.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain wall switch (d) a plain table fan
25. 25.What does the actuator do? (a) measures the real world (b) acts on a command (c) shows data to you (d) reads values, decides
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
27. 27.Which of these is not an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a fitness band with app
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
29. 29.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi smart plug (d) a paper calendar
30. 30.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
34. 34.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
36. 36.What does the sensor do? (a) measures the real world (b) shows data to you (c) acts on a command (d) reads values, decides
37. 37.What does the phone app do? (a) reads values, decides (b) carries the data (c) acts on a command (d) shows data to you
38. 38.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
39. 39.What does the microcontroller do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
40. 40.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device

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