Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 159 · 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 25 bytes. How many bytes do 70 readings take?
2. 2.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) microcontroller (d) sensor
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
4. 4.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) an app-controlled bulb (d) a wind-up clock
5. 5.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a paper calendar (d) a wind-up clock
6. 6.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a battery torch (d) a plain wall switch
7. 7.Which of these is not an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a fitness band with app (d) an app-controlled bulb
8. 8.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
10. 10.What does the cloud server do? (a) carries the data (b) shows data to you (c) measures the real world (d) stores data online
11. 11.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
13. 13.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
14. 14.What does the actuator do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) stores data online
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi smart plug
18. 18.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
19. 19.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi weather station (d) an app-controlled bulb
20. 20.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) microcontroller (d) sensor
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a battery torch
23. 23.What does the microcontroller do? (a) carries the data (b) measures the real world (c) reads values, decides (d) stores data online
24. 24.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain table fan (d) a smart energy meter
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
26. 26.What does the phone app do? (a) shows data to you (b) measures the real world (c) acts on a command (d) stores data online
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
28. 28.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi weather station (d) a pencil sharpener
29. 29.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a paper calendar (d) a wind-up clock
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a paper calendar (d) a battery torch
31. 31.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
32. 32.🔢 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
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
34. 34.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
37. 37.What does the sensor do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) stores data online
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it

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