Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 553 · 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.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
2. 2.What does the cloud server do? (a) acts on a command (b) shows data to you (c) carries the data (d) stores data online
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
4. 4.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
6. 6.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
7. 7.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
8. 8.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
10. 10.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) sensor (d) microcontroller
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
12. 12.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
13. 13.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi doorbell camera
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi weather station
18. 18.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
19. 19.Which of these is not an IoT device? (a) a fitness band with app (b) a plain table fan (c) a Wi-Fi weather station (d) an app-controlled bulb
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
21. 21.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a Wi-Fi weather station (d) a wind-up clock
22. 22.What does the sensor do? (a) carries the data (b) shows data to you (c) stores data online (d) measures the real world
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a Wi-Fi weather station (d) an app-controlled bulb
24. 24.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
25. 25.What does the phone app do? (a) shows data to you (b) measures the real world (c) stores data online (d) reads values, decides
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
27. 27.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
28. 28.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a pencil sharpener (d) an app-controlled bulb
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
30. 30.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) sensor (c) phone app (d) actuator
32. 32.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
35. 35.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) a fitness band with app
36. 36.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi smart plug (d) an app-controlled bulb
37. 37.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a plain wall switch (d) a wind-up clock
38. 38.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) stores data online (d) reads values, decides
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
40. 40.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain wall switch

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