Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 648 · 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.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
2. 2.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
3. 3.What does the actuator do? (a) measures the real world (b) acts on a command (c) stores data online (d) shows data to you
4. 4.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a fitness band with app (d) a paper calendar
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
6. 6.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a battery torch (d) a Wi-Fi weather station
7. 7.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a plain wall switch (d) a plain table fan
8. 8.What does the sensor do? (a) measures the real world (b) acts on a command (c) carries the data (d) reads values, decides
9. 9.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) Wi-Fi (d) sensor
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
13. 13.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a plain table fan (d) an app-controlled bulb
14. 14.🔢 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
15. 15.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the cloud stores it
17. 17.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
18. 18.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a plain table fan
19. 19.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a wind-up clock (d) a paper calendar
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
21. 21.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a pencil sharpener (d) a fitness band with app
22. 22.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi smart plug (d) a fitness band with app
23. 23.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) phone app (d) microcontroller
24. 24.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
27. 27.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a plain table fan
28. 28.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a wind-up clock (d) a plain table fan
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
31. 31.What does the phone app do? (a) reads values, decides (b) carries the data (c) shows data to you (d) measures the real world
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
33. 33.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi smart plug (d) a battery torch
34. 34.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
38. 38.🔢 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
39. 39.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
40. 40.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device

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