Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 269 · 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 weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
2. 2.Which of these is an IoT device? (a) a fitness band with app (b) a battery torch (c) a plain table fan (d) a wind-up clock
3. 3.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
4. 4.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
6. 6.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) microcontroller (c) actuator (d) sensor
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
8. 8.What does the actuator do? (a) stores data online (b) reads values, decides (c) acts on a command (d) measures the real world
9. 9.What does the cloud server do? (a) measures the real world (b) shows data to you (c) acts on a command (d) stores data online
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
11. 11.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
13. 13.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain table fan (d) a plain wall switch
14. 14.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi doorbell camera
15. 15.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
17. 17.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) Wi-Fi (d) sensor
18. 18.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
19. 19.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a plain table fan (d) a Wi-Fi doorbell camera
20. 20.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a battery torch
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a battery torch
22. 22.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
23. 23.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
24. 24.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
26. 26.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
29. 29.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) cloud server (d) sensor
30. 30.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a plain table fan (d) a plain wall switch
34. 34.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a Wi-Fi smart plug
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
36. 36.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) cloud server (d) microcontroller
37. 37.Which of these is an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a pencil sharpener (d) a wind-up clock
38. 38.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain table fan
39. 39.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
40. 40.What does the sensor do? (a) reads values, decides (b) measures the real world (c) stores data online (d) shows data to you

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