Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 924 · 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.What does the sensor do? (a) carries the data (b) acts on a command (c) shows data to you (d) measures the real world
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
3. 3.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
4. 4.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
5. 5.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a fitness band with app (d) a smart energy meter
6. 6.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
8. 8.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
9. 9.🔢 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
10. 10.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a paper calendar (d) a Wi-Fi smart plug
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
14. 14.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
16. 16.🌐 In an IoT system, which part stores data online? (a) actuator (b) Wi-Fi (c) microcontroller (d) cloud server
17. 17.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a plain table fan (d) a pencil sharpener
18. 18.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi smart plug (d) a plain wall switch
19. 19.🏠 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
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a paper calendar (d) a fitness band with app
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
22. 22.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
23. 23.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain wall switch (d) a plain table fan
24. 24.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a battery torch (d) a paper calendar
25. 25.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 smart energy meter
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
28. 28.What does the actuator do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
31. 31.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
32. 32.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
34. 34.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a plain wall switch
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
36. 36.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) microcontroller (d) actuator
37. 37.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) carries the data (d) stores data online
38. 38.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) phone app (d) sensor
39. 39.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) cloud server (c) Wi-Fi (d) phone app
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?

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