Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 755 · 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.What does the sensor do? (a) carries the data (b) measures the real world (c) shows data to you (d) reads values, decides
2. 2.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
3. 3.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) stores data online
4. 4.🏠 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
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
6. 6.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 battery torch
7. 7.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
9. 9.🌐 In an IoT system, which part acts on a command? (a) phone app (b) cloud server (c) actuator (d) Wi-Fi
10. 10.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi weather station (d) a plain wall switch
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi smart plug
12. 12.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) phone app (d) actuator
13. 13.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) an app-controlled bulb (d) a smart energy meter
14. 14.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain table fan
15. 15.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
17. 17.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a fitness band with app
19. 19.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi smart plug (d) a paper calendar
20. 20.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) Wi-Fi (d) phone app
21. 21.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
22. 22.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a wind-up clock
23. 23.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) stores data online (d) reads values, decides
24. 24.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a smart energy meter (d) a wind-up clock
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
27. 27.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
29. 29.What does the actuator do? (a) carries the data (b) shows data to you (c) stores data online (d) acts on a command
30. 30.What does the microcontroller do? (a) measures the real world (b) stores data online (c) acts on a command (d) reads values, decides
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
32. 32.🔢 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
33. 33.🔢 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
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
36. 36.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a plain table fan
38. 38.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) phone app (d) microcontroller
40. 40.What does the phone app do? (a) stores data online (b) reads values, decides (c) carries the data (d) shows data to you

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