Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 870 · 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) lights on from an app (c) a printed map (d) a candle in a jar
2. 2.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a plain table fan (d) a battery torch
3. 3.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) an app-controlled bulb (d) a pencil sharpener
4. 4.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
5. 5.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
6. 6.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a pencil sharpener (d) a plain table fan
7. 7.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
8. 8.What does the phone app do? (a) carries the data (b) shows data to you (c) reads values, decides (d) stores data online
9. 9.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a battery torch
10. 10.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
13. 13.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
14. 14.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a battery torch
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
16. 16.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
17. 17.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a smart energy meter (d) a plain wall switch
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
19. 19.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) phone app (d) microcontroller
20. 20.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
22. 22.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) sensor (d) phone app
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a plain table fan
24. 24.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) shows data to you (d) reads values, decides
25. 25.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
26. 26.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi weather station (d) a smart energy meter
31. 31.🔢 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
32. 32.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) microcontroller (d) cloud server
33. 33.What does the actuator do? (a) reads values, decides (b) measures the real world (c) carries the data (d) acts on a command
34. 34.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain wall switch (d) a plain table fan
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
36. 36.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi weather station
37. 37.What does the Wi-Fi link do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
39. 39.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a paper calendar (d) a fitness band with app
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?

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