Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 540 · 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 an IoT device? (a) a plain wall switch (b) a paper calendar (c) a smart energy meter (d) a plain table fan
2. 2.What does the cloud server do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) stores data online
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
4. 4.🔢 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
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a pencil sharpener
6. 6.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
7. 7.What does the sensor do? (a) stores data online (b) acts on a command (c) carries the data (d) measures the real world
8. 8.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a battery torch (d) a smart energy meter
9. 9.What does the actuator do? (a) acts on a command (b) stores data online (c) shows data to you (d) reads values, decides
10. 10.What does the phone app do? (a) acts on a command (b) carries the data (c) shows data to you (d) measures the real world
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
12. 12.What does the microcontroller do? (a) acts on a command (b) carries the data (c) measures the real world (d) reads values, decides
13. 13.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
16. 16.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a pencil sharpener (d) a fitness band with app
17. 17.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
20. 20.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) microcontroller (d) cloud server
21. 21.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
22. 22.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
24. 24.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
25. 25.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi smart plug
26. 26.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a pencil sharpener
27. 27.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a plain table fan (d) a paper calendar
29. 29.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
30. 30.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
35. 35.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) cloud server (d) microcontroller
36. 36.Which of these is not an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a fitness band with app
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
38. 38.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
40. 40.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a fitness band with app (d) a battery torch

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