Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 46 · 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 a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
3. 3.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a pencil sharpener (d) a battery torch
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a wind-up clock
5. 5.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) phone app (d) Wi-Fi
6. 6.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it
10. 10.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) Wi-Fi (d) actuator
11. 11.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
12. 12.What does the microcontroller do? (a) shows data to you (b) measures the real world (c) acts on a command (d) reads values, decides
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a plain table fan (d) a pencil sharpener
14. 14.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a smart energy meter (d) a plain table fan
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a smart energy meter (d) a fitness band with app
16. 16.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) an app-controlled bulb (d) a wind-up clock
17. 17.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
19. 19.Which of these is not an IoT device? (a) a plain wall switch (b) a fitness band with app (c) an app-controlled bulb (d) a smart energy meter
20. 20.What does the sensor do? (a) stores data online (b) carries the data (c) measures the real world (d) reads values, decides
21. 21.🔢 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
22. 22.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
23. 23.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) the app shows it (d) the cloud stores it
24. 24.What does the phone app do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) shows data to you
25. 25.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
26. 26.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a plain table fan (d) a smart energy meter
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
29. 29.🔢 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 board reads it (c) the app shows it (d) the sensor measures
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
31. 31.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a battery torch (d) a Wi-Fi smart plug
32. 32.What does the Wi-Fi link do? (a) acts on a command (b) measures the real world (c) shows data to you (d) carries the data
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
34. 34.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a fitness band with app
35. 35.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) a Wi-Fi weather station
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
37. 37.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a pencil sharpener
38. 38.🔢 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
39. 39.What does the actuator do? (a) acts on a command (b) carries the data (c) measures the real world (d) stores data online
40. 40.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server

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