Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 533 · 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.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a pencil sharpener (d) a Wi-Fi weather station
2. 2.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
3. 3.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) an app-controlled bulb (d) a wind-up clock
4. 4.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
5. 5.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a pencil sharpener
7. 7.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
9. 9.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a smart energy meter (d) a wind-up clock
10. 10.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
11. 11.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🔢 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
13. 13.What does the sensor do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
14. 14.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a wind-up clock (d) a battery torch
16. 16.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) phone app (d) microcontroller
17. 17.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
18. 18.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
19. 19.What does the Wi-Fi link do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) carries the data
20. 20.What does the phone app do? (a) reads values, decides (b) measures the real world (c) carries the data (d) shows data to you
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
22. 22.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) an app-controlled bulb (d) a fitness band with app
23. 23.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
24. 24.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a plain table fan (d) an app-controlled bulb
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
26. 26.What does the actuator do? (a) shows data to you (b) acts on a command (c) carries the data (d) reads values, decides
27. 27.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi smart plug
28. 28.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
29. 29.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi smart plug (d) an app-controlled bulb
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
34. 34.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) cloud server (d) phone app
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a battery torch (d) a fitness band with app
38. 38.🔢 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
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it

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