Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 350 · 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.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi smart plug
3. 3.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) sensor (d) microcontroller
4. 4.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a pencil sharpener (d) an app-controlled bulb
5. 5.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
7. 7.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a fitness band with app (d) a battery torch
8. 8.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) sensor (d) actuator
9. 9.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) stores data online
10. 10.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) an app-controlled bulb (d) a Wi-Fi weather station
11. 11.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the cloud stores it
13. 13.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi weather station (d) a paper calendar
14. 14.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
20. 20.What does the actuator do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) acts on a command
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a plain wall switch (d) a pencil sharpener
22. 22.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) sensor (c) Wi-Fi (d) actuator
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the cloud stores it
24. 24.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a paper calendar
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) an app-controlled bulb (d) a smart energy meter
26. 26.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi doorbell camera
27. 27.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi smart plug (d) a battery torch
29. 29.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
32. 32.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) sensor (d) phone app
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain table fan
35. 35.Which of these is an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a pencil sharpener (d) a paper calendar
36. 36.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
39. 39.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a pencil sharpener (d) a paper calendar
40. 40.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures

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