Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 602 · 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.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
2. 2.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
4. 4.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
5. 5.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi weather station
6. 6.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) sensor (d) microcontroller
7. 7.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi smart plug
8. 8.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) an app-controlled bulb (d) a battery torch
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi weather station
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
11. 11.What does the phone app do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) acts on a command
12. 12.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) microcontroller (d) actuator
14. 14.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a smart energy meter
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
16. 16.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
17. 17.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a wind-up clock (d) a battery torch
18. 18.What does the microcontroller do? (a) carries the data (b) measures the real world (c) acts on a command (d) reads values, decides
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
20. 20.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
21. 21.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a battery torch (d) a pencil sharpener
22. 22.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
23. 23.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a battery torch
24. 24.What does the sensor do? (a) reads values, decides (b) stores data online (c) measures the real world (d) acts on a command
25. 25.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a paper calendar (d) a fitness band with app
26. 26.What does the actuator do? (a) measures the real world (b) stores data online (c) reads values, decides (d) acts on a command
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
28. 28.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a smart energy meter (d) a pencil sharpener
29. 29.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a fitness band with app (d) a smart energy meter
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
32. 32.🌐 In an IoT system, which part carries the data? (a) cloud server (b) phone app (c) Wi-Fi (d) actuator
33. 33.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) cloud server (d) sensor
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
35. 35.Which of these is not an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a smart energy meter
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) an app-controlled bulb (d) a plain table fan
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
40. 40.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device

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