Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 825 · 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 is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a battery torch (d) a Wi-Fi smart plug
2. 2.What does the sensor do? (a) shows data to you (b) reads values, decides (c) stores data online (d) measures the real world
3. 3.🌐 In an IoT system, which part stores data online? (a) sensor (b) microcontroller (c) cloud server (d) actuator
4. 4.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
5. 5.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a pencil sharpener (d) a fitness band with app
6. 6.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) actuator (d) Wi-Fi
7. 7.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the app shows it
8. 8.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
9. 9.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
10. 10.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) actuator (d) Wi-Fi
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
12. 12.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) microcontroller (d) sensor
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
15. 15.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
16. 16.What does the cloud server do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
19. 19.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a plain table fan (d) a fitness band with app
20. 20.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
22. 22.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
23. 23.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a pencil sharpener (d) an app-controlled bulb
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
25. 25.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a pencil sharpener (d) a plain wall switch
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
27. 27.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi smart plug (d) a smart energy meter
29. 29.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
31. 31.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
32. 32.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a plain wall switch (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) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
35. 35.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a plain table fan (d) a smart energy meter
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) an app-controlled bulb (d) a fitness band with app
39. 39.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device

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