Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 930 · 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 110 readings take?
2. 2.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) carries the data
3. 3.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) cloud server (d) Wi-Fi
4. 4.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) phone app (d) microcontroller
5. 5.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
6. 6.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
8. 8.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain table fan
9. 9.What does the sensor do? (a) measures the real world (b) acts on a command (c) shows data to you (d) reads values, decides
10. 10.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
11. 11.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) sensor (d) actuator
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
13. 13.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a battery torch
14. 14.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a paper calendar (d) a smart energy meter
15. 15.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) Wi-Fi (d) microcontroller
17. 17.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
19. 19.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) Wi-Fi (d) phone app
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a plain wall switch (d) a pencil sharpener
21. 21.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a plain wall switch (d) a battery torch
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
23. 23.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a plain wall switch
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
26. 26.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a smart energy meter (d) an app-controlled bulb
27. 27.🔢 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
28. 28.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
29. 29.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
30. 30.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
31. 31.Which of these is not an IoT device? (a) a fitness band with app (b) a battery torch (c) a Wi-Fi smart plug (d) an app-controlled bulb
32. 32.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
33. 33.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
34. 34.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a pencil sharpener
35. 35.🔢 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
36. 36.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi smart plug (d) a fitness band with app
37. 37.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
39. 39.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a plain wall switch (d) a battery torch
40. 40.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device

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