Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 148 · 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.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) carries the data
2. 2.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
3. 3.What does the actuator do? (a) acts on a command (b) stores data online (c) reads values, decides (d) measures the real world
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a pencil sharpener (d) an app-controlled bulb
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the sensor measures
7. 7.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a paper calendar (d) a battery torch
8. 8.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
9. 9.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
10. 10.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) cloud server (d) Wi-Fi
11. 11.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
12. 12.What does the sensor do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
14. 14.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
15. 15.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) stores data online (d) carries the data
16. 16.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a battery torch
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
19. 19.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) an app-controlled bulb (d) a smart energy meter
20. 20.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
21. 21.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) stores data online (d) measures the real world
22. 22.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) cloud server (d) phone app
23. 23.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
27. 27.🔢 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
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
29. 29.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a Wi-Fi smart plug
30. 30.🔢 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
31. 31.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi smart plug
32. 32.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
34. 34.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain table fan
35. 35.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a fitness band with app (d) a plain wall switch
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
38. 38.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
39. 39.🌐 A weather station sends one reading every 20 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 wind-up clock (d) a Wi-Fi doorbell camera

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