Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 880 · 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.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a smart energy meter
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
3. 3.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
4. 4.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) sensor (d) actuator
5. 5.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
6. 6.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
7. 7.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi smart plug
8. 8.What does the actuator do? (a) shows data to you (b) carries the data (c) acts on a command (d) measures the real world
9. 9.Which of these is an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a pencil sharpener (d) a plain table fan
10. 10.🔢 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 cloud stores it (d) the app shows it
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
12. 12.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
13. 13.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
14. 14.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) an app-controlled bulb (d) a pencil sharpener
15. 15.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 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
18. 18.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
20. 20.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) microcontroller (c) actuator (d) sensor
21. 21.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a smart energy meter (d) a battery torch
22. 22.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
23. 23.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a pencil sharpener
26. 26.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) actuator (c) cloud server (d) sensor
27. 27.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
28. 28.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) Wi-Fi (d) actuator
29. 29.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) phone app (d) actuator
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
31. 31.What does the phone app do? (a) carries the data (b) shows data to you (c) reads values, decides (d) acts on a command
32. 32.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
34. 34.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online
35. 35.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) shows data to you
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
37. 37.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a paper calendar
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
39. 39.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain wall switch
40. 40.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device

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