Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 178 · 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 Wi-Fi smart plug (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi doorbell camera
2. 2.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) sensor (d) Wi-Fi
3. 3.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
6. 6.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) carries the data
7. 7.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) cloud server (d) Wi-Fi
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain table fan (d) a fitness band with app
10. 10.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
12. 12.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) cloud server (d) microcontroller
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
14. 14.Which of these is an IoT device? (a) a smart energy meter (b) a paper calendar (c) a plain wall switch (d) a battery torch
15. 15.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi doorbell camera
16. 16.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a pencil sharpener (d) a Wi-Fi doorbell camera
17. 17.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
20. 20.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a pencil sharpener
21. 21.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
22. 22.What does the phone app do? (a) stores data online (b) reads values, decides (c) shows data to you (d) carries the data
23. 23.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a battery torch (d) a plain wall switch
24. 24.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) actuator (d) phone app
25. 25.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
27. 27.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
29. 29.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
30. 30.🔢 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
31. 31.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
34. 34.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
38. 38.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a Wi-Fi smart plug (d) a battery torch
39. 39.What does the sensor do? (a) stores data online (b) acts on a command (c) measures the real world (d) reads values, decides
40. 40.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a fitness band with app (d) a Wi-Fi smart plug

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