Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 251 · 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 Wi-Fi doorbell camera (b) a plain wall switch (c) a fitness band with app (d) a Wi-Fi smart plug
2. 2.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi weather station (d) a plain table fan
3. 3.What does the microcontroller do? (a) shows data to you (b) carries the data (c) reads values, decides (d) acts on a command
4. 4.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock
5. 5.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) Wi-Fi (d) actuator
6. 6.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
7. 7.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi weather station
8. 8.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
9. 9.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a wind-up clock (d) a plain table fan
11. 11.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
15. 15.What does the phone app do? (a) measures the real world (b) shows data to you (c) acts on a command (d) reads values, decides
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi weather station
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
19. 19.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
22. 22.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
24. 24.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
25. 25.What does the actuator do? (a) shows data to you (b) acts on a command (c) stores data online (d) reads values, decides
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
27. 27.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi smart plug (d) an app-controlled bulb
28. 28.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
30. 30.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
33. 33.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a paper calendar
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
36. 36.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
37. 37.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a wind-up clock (d) a battery torch
38. 38.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) microcontroller (d) Wi-Fi
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
40. 40.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) Wi-Fi (d) actuator

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