Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 157 · 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.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) an app-controlled bulb (d) a battery torch
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
3. 3.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a wind-up clock
4. 4.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) reads values, decides (d) stores data online
5. 5.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
7. 7.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) sensor (d) Wi-Fi
8. 8.What does the actuator do? (a) stores data online (b) reads values, decides (c) acts on a command (d) carries the data
9. 9.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
12. 12.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) sensor (c) Wi-Fi (d) actuator
13. 13.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a plain wall switch (d) a pencil sharpener
14. 14.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a plain wall switch (d) an app-controlled bulb
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
17. 17.🏠 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
18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a fitness band with app (d) a plain wall switch
19. 19.What does the cloud server do? (a) stores data online (b) acts on a command (c) reads values, decides (d) carries the data
20. 20.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a wind-up clock (d) a plain table fan
21. 21.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi smart plug (d) a pencil sharpener
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
25. 25.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a battery torch (d) a fitness band with app
26. 26.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) the cloud stores it
27. 27.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
29. 29.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a plain table fan
30. 30.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) an app-controlled bulb
31. 31.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) an app-controlled bulb
32. 32.What does the sensor do? (a) acts on a command (b) carries the data (c) measures the real world (d) shows data to you
33. 33.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a battery torch (d) a wind-up clock
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
37. 37.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi weather station
38. 38.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) sensor (c) actuator (d) phone app
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
40. 40.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device

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