Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 393 · 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) an IoT device (b) not an IoT device
2. 2.Which of these is an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a plain table fan (d) a wind-up clock
3. 3.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🔢 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 cloud stores it
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
6. 6.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
7. 7.What does the sensor do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
8. 8.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
9. 9.Which of these is not an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
10. 10.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a pencil sharpener
11. 11.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
13. 13.What does the phone app do? (a) reads values, decides (b) shows data to you (c) carries the data (d) measures the real world
14. 14.🔢 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
15. 15.🔢 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 sensor measures (c) the board reads it (d) the app shows it
16. 16.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi weather station (d) a battery torch
17. 17.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) actuator
18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a smart energy meter
19. 19.What does the Wi-Fi link do? (a) acts on a command (b) shows data to you (c) stores data online (d) carries the data
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
21. 21.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
22. 22.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a fitness band with app (d) a Wi-Fi smart plug
23. 23.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) sensor (d) Wi-Fi
24. 24.What does the cloud server do? (a) stores data online (b) carries the data (c) reads values, decides (d) acts on a command
25. 25.🔢 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 sensor measures (d) the board reads it
26. 26.What does the actuator do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) measures the real world
27. 27.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
29. 29.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) microcontroller (d) sensor
30. 30.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) cloud server
31. 31.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) sensor (c) actuator (d) phone app
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a fitness band with app (d) a Wi-Fi weather station
34. 34.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi weather station
35. 35.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi weather station
36. 36.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain table fan
37. 37.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a paper calendar (d) a pencil sharpener
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
39. 39.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device

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