Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 373 · 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 IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
3. 3.What does the sensor do? (a) carries the data (b) shows data to you (c) reads values, decides (d) measures the real world
4. 4.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) phone app (d) microcontroller
5. 5.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) an app-controlled bulb
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
8. 8.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a paper calendar (d) a plain table fan
9. 9.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
10. 10.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a battery torch
11. 11.🏠 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
12. 12.What does the actuator do? (a) shows data to you (b) acts on a command (c) carries the data (d) measures the real world
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
16. 16.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a battery torch (d) a smart energy meter
17. 17.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
19. 19.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
20. 20.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) sensor (d) phone app
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
22. 22.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) phone app (d) Wi-Fi
23. 23.What does the microcontroller do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a smart energy meter (d) a battery torch
27. 27.🌐 In an IoT system, which part carries the data? (a) actuator (b) phone app (c) sensor (d) Wi-Fi
28. 28.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) an app-controlled bulb (d) a wind-up clock
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
30. 30.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
31. 31.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
32. 32.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
34. 34.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
35. 35.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
36. 36.What does the phone app do? (a) stores data online (b) shows data to you (c) reads values, decides (d) measures the real world
37. 37.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
39. 39.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
40. 40.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device

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