Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 965 · 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 reads values, decides? (a) phone app (b) Wi-Fi (c) sensor (d) microcontroller
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
3. 3.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) sensor (c) actuator (d) phone app
4. 4.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi weather station (d) a battery torch
5. 5.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
6. 6.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
7. 7.What does the sensor do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
8. 8.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) an app-controlled bulb (d) a plain wall switch
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
10. 10.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
12. 12.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔢 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
14. 14.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
15. 15.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
16. 16.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain wall switch (d) a paper calendar
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
18. 18.What does the microcontroller do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) stores data online
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a battery torch
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
21. 21.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
22. 22.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) sensor (d) microcontroller
23. 23.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a fitness band with app (d) a wind-up clock
24. 24.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) measures the real world
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a wind-up clock
26. 26.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a pencil sharpener (d) an app-controlled bulb
27. 27.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
29. 29.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
32. 32.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a battery torch
33. 33.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi doorbell camera
34. 34.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
35. 35.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) Wi-Fi (d) actuator
36. 36.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a battery torch
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
39. 39.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
40. 40.What does the cloud server do? (a) acts on a command (b) stores data online (c) reads values, decides (d) measures the real world

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