Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 339 · 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 10 bytes. How many bytes do 110 readings take?
2. 2.What does the sensor do? (a) carries the data (b) reads values, decides (c) stores data online (d) measures the real world
3. 3.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi smart plug
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
6. 6.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi doorbell camera (d) a wind-up clock
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
8. 8.What does the microcontroller do? (a) measures the real world (b) shows data to you (c) carries the data (d) reads values, decides
9. 9.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
12. 12.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi doorbell camera
13. 13.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi smart plug
14. 14.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi smart plug
15. 15.What does the phone app do? (a) stores data online (b) reads values, decides (c) shows data to you (d) measures the real world
16. 16.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) microcontroller (d) actuator
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
20. 20.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
22. 22.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
24. 24.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
25. 25.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) measures the real world (d) reads values, decides
26. 26.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
27. 27.Which of these is an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a plain wall switch (d) a battery torch
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 wind-up clock
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
30. 30.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
33. 33.🔢 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
34. 34.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
35. 35.Which of these is not an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
36. 36.🔢 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
37. 37.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a Wi-Fi weather station
38. 38.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a pencil sharpener (d) a Wi-Fi doorbell camera
39. 39.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) sensor (d) microcontroller
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?

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