Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 828 · 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.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
3. 3.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a wind-up clock
5. 5.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a fitness band with app (d) a battery torch
6. 6.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
7. 7.Which of these is an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a pencil sharpener (d) a wind-up clock
8. 8.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
9. 9.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) sensor (d) cloud server
10. 10.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
11. 11.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a pencil sharpener
12. 12.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) sensor (d) phone app
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) an app-controlled bulb (d) a plain table fan
15. 15.What does the phone app do? (a) stores data online (b) reads values, decides (c) shows data to you (d) measures the real world
16. 16.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a battery torch (d) a wind-up clock
17. 17.What does the actuator do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) acts on a command
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
20. 20.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
21. 21.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) actuator (d) phone app
22. 22.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) acts on a command (d) shows data to you
23. 23.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
24. 24.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) stores data online (d) acts on a command
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
26. 26.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
29. 29.🔢 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
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
31. 31.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a battery torch (d) a plain wall switch
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
34. 34.What does the microcontroller do? (a) stores data online (b) shows data to you (c) measures the real world (d) reads values, decides
35. 35.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
37. 37.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
40. 40.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a smart energy meter (d) a fitness band with app

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