Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 797 · 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 a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
2. 2.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) stores data online
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain table fan (d) a Wi-Fi doorbell camera
4. 4.What does the phone app do? (a) measures the real world (b) shows data to you (c) acts on a command (d) stores data online
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
6. 6.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
7. 7.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) phone app (d) actuator
8. 8.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a smart energy meter (d) a battery torch
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
11. 11.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) the sensor measures (d) the app shows it
12. 12.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) shows data to you (d) reads values, decides
13. 13.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
14. 14.What does the cloud server do? (a) carries the data (b) acts on a command (c) stores data online (d) measures the real world
15. 15.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a fitness band with app (d) a wind-up clock
16. 16.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) actuator (d) Wi-Fi
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
19. 19.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a wind-up clock (d) a plain wall switch
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
22. 22.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
23. 23.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a pencil sharpener (d) a fitness band with app
24. 24.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a battery torch (d) an app-controlled bulb
25. 25.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
26. 26.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a smart energy meter
27. 27.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a wind-up clock
28. 28.What does the sensor do? (a) measures the real world (b) acts on a command (c) stores data online (d) shows data to you
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
30. 30.What does the actuator do? (a) reads values, decides (b) stores data online (c) measures the real world (d) acts on a command
31. 31.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a pencil sharpener (d) a wind-up clock
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
33. 33.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) phone app (d) actuator
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
35. 35.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) sensor (d) Wi-Fi
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
37. 37.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) actuator (d) cloud server
38. 38.🌐 In an IoT system, which part measures the real world? (a) actuator (b) Wi-Fi (c) sensor (d) microcontroller
39. 39.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a plain table fan (d) a Wi-Fi doorbell camera
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?

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