Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 522 · 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.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain table fan (d) an app-controlled bulb
3. 3.🔢 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
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
5. 5.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a smart energy meter (d) a fitness band with app
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
7. 7.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
8. 8.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
9. 9.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) acts on a command (d) carries the data
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
12. 12.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi weather station
13. 13.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi smart plug (d) a plain wall switch
14. 14.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi smart plug
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
16. 16.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a pencil sharpener
17. 17.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) carries the data (d) stores data online
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
19. 19.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) microcontroller (d) Wi-Fi
23. 23.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) actuator (d) cloud server
24. 24.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) phone app (d) actuator
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
26. 26.🌐 In an IoT system, which part carries the data? (a) actuator (b) sensor (c) microcontroller (d) Wi-Fi
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
28. 28.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a wind-up clock (d) a fitness band with app
29. 29.Which of these is not an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi weather station (d) an app-controlled bulb
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
31. 31.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) measures the real world (d) shows data to you
32. 32.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a paper calendar (d) a smart energy meter
33. 33.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 In an IoT system, which part stores data online? (a) actuator (b) phone app (c) sensor (d) cloud server
35. 35.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
37. 37.🌐 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
38. 38.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a wind-up clock (d) a smart energy meter

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