Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 588 · 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 reads values, decides? (a) sensor (b) phone app (c) microcontroller (d) Wi-Fi
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
3. 3.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) sensor (d) actuator
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
6. 6.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
7. 7.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) an app-controlled bulb (d) a plain table fan
8. 8.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
9. 9.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a pencil sharpener
11. 11.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
12. 12.What does the actuator do? (a) carries the data (b) acts on a command (c) shows data to you (d) measures the real world
13. 13.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
14. 14.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi smart plug
15. 15.What does the Wi-Fi link do? (a) acts on a command (b) shows data to you (c) carries the data (d) measures the real world
16. 16.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a pencil sharpener (d) a battery torch
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
19. 19.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a paper calendar (d) a battery torch
20. 20.What does the cloud server do? (a) stores data online (b) shows data to you (c) reads values, decides (d) measures the real world
21. 21.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a pencil sharpener (d) a plain wall switch
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
25. 25.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) sensor (d) cloud server
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
27. 27.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a wind-up clock (d) a smart energy meter
28. 28.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) stores data online
29. 29.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) phone app (d) Wi-Fi
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a smart energy meter (d) a battery torch
31. 31.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
32. 32.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a fitness band with app (d) a paper calendar
35. 35.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
37. 37.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a battery torch (d) a plain table fan
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
40. 40.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a battery torch

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