Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 824 · 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 pencil sharpener (b) a plain wall switch (c) a battery torch (d) a Wi-Fi doorbell camera
2. 2.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) actuator (d) phone app
3. 3.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a battery torch (d) a wind-up clock
4. 4.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
5. 5.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) measures the real world (d) shows data to you
6. 6.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
7. 7.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi smart plug
8. 8.🔢 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
9. 9.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) an app-controlled bulb (d) a plain table fan
11. 11.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
12. 12.🌐 In an IoT system, which part shows data to you? (a) phone app (b) Wi-Fi (c) microcontroller (d) sensor
13. 13.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
14. 14.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
15. 15.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
16. 16.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
17. 17.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
18. 18.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi doorbell camera
19. 19.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) actuator (d) cloud server
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
23. 23.What does the phone app do? (a) reads values, decides (b) measures the real world (c) stores data online (d) shows data to you
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a pencil sharpener (d) a battery torch
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
26. 26.What does the actuator do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) stores data online
27. 27.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
28. 28.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a smart energy meter (d) a paper calendar
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
30. 30.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
32. 32.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) an app-controlled bulb (d) a paper calendar
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
36. 36.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) stores data online (d) acts on a command
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
38. 38.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a smart energy meter (d) a battery torch
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
40. 40.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a battery torch (d) a Wi-Fi weather station

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