Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 35 · 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 10 bytes. How many bytes do 70 readings take?
2. 2.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) sensor (d) Wi-Fi
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
5. 5.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) Wi-Fi (c) actuator (d) sensor
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
7. 7.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
9. 9.What does the phone app do? (a) shows data to you (b) stores data online (c) carries the data (d) acts on a command
10. 10.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a fitness band with app
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
15. 15.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain wall switch
16. 16.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a plain wall switch (d) an app-controlled bulb
17. 17.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
18. 18.What does the microcontroller do? (a) stores data online (b) acts on a command (c) measures the real world (d) reads values, decides
19. 19.What does the actuator do? (a) shows data to you (b) acts on a command (c) carries the data (d) stores data online
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
21. 21.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) reads values, decides (d) carries the data
22. 22.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a Wi-Fi weather station
23. 23.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) actuator (d) Wi-Fi
24. 24.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a pencil sharpener (d) a battery torch
25. 25.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) phone app (d) microcontroller
26. 26.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
28. 28.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
29. 29.What does the sensor do? (a) measures the real world (b) carries the data (c) stores data online (d) reads values, decides
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a wind-up clock (d) a pencil sharpener
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) it is sent by Wi-Fi
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
37. 37.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
38. 38.Which of these is an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a plain table fan (d) a plain wall switch
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
40. 40.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device

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