Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 341 · 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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
2. 2.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
3. 3.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 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
5. 5.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
6. 6.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain wall switch
7. 7.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
8. 8.🌐 In an IoT system, which part stores data online? (a) phone app (b) Wi-Fi (c) actuator (d) cloud server
9. 9.What does the cloud server do? (a) measures the real world (b) shows data to you (c) stores data online (d) reads values, decides
10. 10.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) stores data online (d) acts on a command
11. 11.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
12. 12.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) cloud server (d) Wi-Fi
13. 13.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a battery torch
14. 14.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) the cloud stores it
16. 16.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
18. 18.What does the phone app do? (a) acts on a command (b) stores data online (c) reads values, decides (d) shows data to you
19. 19.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) phone app (d) sensor
20. 20.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a wind-up clock
21. 21.What does the actuator do? (a) stores data online (b) acts on a command (c) reads values, decides (d) shows data to you
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi smart plug (d) a smart energy meter
23. 23.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) sensor (c) actuator (d) microcontroller
24. 24.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a pencil sharpener (d) a battery torch
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
26. 26.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
30. 30.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
32. 32.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi weather station (d) a fitness band with app
33. 33.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) cloud server (d) phone app
34. 34.Which of these is not an IoT device? (a) a battery torch (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi smart plug
35. 35.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
36. 36.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a fitness band with app
37. 37.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a plain table fan (d) a smart energy meter
38. 38.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a plain table fan (d) a plain wall switch
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
40. 40.Which of these is not an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera

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