Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 334 · 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.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) Wi-Fi (d) cloud server
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
5. 5.🌐 In an IoT system, which part stores data online? (a) cloud server (b) Wi-Fi (c) actuator (d) phone app
6. 6.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi smart plug (d) a plain table fan
7. 7.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
8. 8.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) microcontroller (d) sensor
9. 9.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
12. 12.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
13. 13.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
16. 16.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a battery torch (d) a fitness band with app
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a plain table fan
19. 19.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) phone app (d) microcontroller
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
21. 21.What does the phone app do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) carries the data
22. 22.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a plain wall switch (d) a paper calendar
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
27. 27.Which of these is an IoT device? (a) a smart energy meter (b) a plain table fan (c) a plain wall switch (d) a battery torch
28. 28.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) microcontroller (d) phone app
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.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
32. 32.🔢 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
33. 33.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
36. 36.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi doorbell camera
37. 37.🔢 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
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
39. 39.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) carries the data
40. 40.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a battery torch

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