Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 276 · 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 50 bytes. How many bytes do 170 readings take?
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
4. 4.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a pencil sharpener (d) an app-controlled bulb
5. 5.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) phone app (c) Wi-Fi (d) actuator
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
7. 7.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
9. 9.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
10. 10.What does the sensor do? (a) shows data to you (b) measures the real world (c) carries the data (d) stores data online
11. 11.What does the phone app do? (a) stores data online (b) measures the real world (c) reads values, decides (d) shows data to you
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a plain table fan
14. 14.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a paper calendar (d) a battery torch
15. 15.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a plain wall switch (d) a fitness band with app
16. 16.What does the microcontroller do? (a) carries the data (b) shows data to you (c) measures the real world (d) reads values, decides
17. 17.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a battery torch (d) a plain table fan
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi doorbell camera
19. 19.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
21. 21.What does the actuator do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
22. 22.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
24. 24.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi doorbell camera
25. 25.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) cloud server (d) actuator
26. 26.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
27. 27.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a plain table fan (d) a fitness band with app
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
29. 29.🔢 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
30. 30.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) Wi-Fi (d) sensor
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
33. 33.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a pencil sharpener (d) a paper calendar
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
35. 35.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a wind-up clock (d) a paper calendar
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
37. 37.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) phone app (d) Wi-Fi
38. 38.What does the cloud server do? (a) carries the data (b) reads values, decides (c) measures the real world (d) stores data online
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
40. 40.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a paper calendar

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