Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 480 · 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 phone app do? (a) acts on a command (b) stores data online (c) reads values, decides (d) shows data to you
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
3. 3.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a wind-up clock
4. 4.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) microcontroller (d) actuator
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
6. 6.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) cloud server (d) Wi-Fi
7. 7.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
8. 8.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
9. 9.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) carries the data (d) acts on a command
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
11. 11.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
12. 12.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi smart plug
13. 13.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a plain table fan (d) a fitness band with app
14. 14.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
16. 16.What does the actuator do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) carries the data
17. 17.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi doorbell camera
18. 18.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
20. 20.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
21. 21.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
22. 22.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a wind-up clock (d) a battery torch
23. 23.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a paper calendar (d) an app-controlled bulb
24. 24.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
26. 26.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a plain table fan (d) a plain wall switch
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
29. 29.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
30. 30.🔢 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
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
32. 32.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a pencil sharpener (d) a Wi-Fi smart plug
33. 33.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) cloud server (d) sensor
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
35. 35.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a Wi-Fi weather station (d) a fitness band with app
37. 37.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a battery torch
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
39. 39.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) cloud server (c) actuator (d) microcontroller
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?

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