Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 432 · 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 microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) shows data to you
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
3. 3.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a fitness band with app
4. 4.What does the phone app do? (a) shows data to you (b) reads values, decides (c) carries the data (d) acts on a command
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
6. 6.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a Wi-Fi weather station (d) a fitness band with app
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) actuator (d) microcontroller
9. 9.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) sensor (c) Wi-Fi (d) phone app
10. 10.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a battery torch (d) a smart energy meter
12. 12.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
13. 13.Which of these is not an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a fitness band with app (d) a smart energy meter
14. 14.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a plain wall switch (d) a wind-up clock
15. 15.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a pencil sharpener (d) a fitness band with app
16. 16.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
17. 17.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a paper calendar
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
20. 20.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
21. 21.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a plain table fan
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
24. 24.What does the sensor do? (a) shows data to you (b) carries the data (c) measures the real world (d) reads values, decides
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
26. 26.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🔢 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
28. 28.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) phone app (c) cloud server (d) sensor
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a Wi-Fi smart plug (d) an app-controlled bulb
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
33. 33.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a smart energy meter
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
36. 36.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi weather station (d) a plain table fan
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain table fan
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
39. 39.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a plain table fan (d) a smart energy meter
40. 40.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) microcontroller (d) phone app

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