Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 260 · 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.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
2. 2.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a plain table fan (d) a pencil sharpener
3. 3.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) phone app (d) Wi-Fi
4. 4.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a plain table fan (d) a Wi-Fi doorbell camera
5. 5.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
6. 6.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a smart energy meter (d) an app-controlled bulb
8. 8.What does the sensor do? (a) reads values, decides (b) acts on a command (c) carries the data (d) measures the real world
9. 9.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) phone app (d) actuator
10. 10.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
11. 11.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) carries the data
12. 12.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
13. 13.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) stores data online (d) measures the real world
14. 14.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
15. 15.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
17. 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
19. 19.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a wind-up clock (d) a fitness band with app
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
25. 25.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
26. 26.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
27. 27.What does the cloud server do? (a) carries the data (b) stores data online (c) acts on a command (d) shows data to you
28. 28.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) microcontroller
29. 29.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a smart energy meter
30. 30.What does the Wi-Fi link do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) carries the data
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
33. 33.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a plain table fan (d) a paper calendar
35. 35.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a pencil sharpener
36. 36.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a battery torch (d) a smart energy meter
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
39. 39.🏠 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
40. 40.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a wind-up clock (d) a fitness band with app

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