Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 541 · 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.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
3. 3.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) cloud server (d) phone app
4. 4.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi weather station (d) a smart energy meter
5. 5.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi doorbell camera
7. 7.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
9. 9.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) cloud server (d) sensor
10. 10.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
11. 11.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
12. 12.What does the sensor do? (a) reads values, decides (b) stores data online (c) measures the real world (d) shows data to you
13. 13.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi smart plug (d) a battery torch
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
15. 15.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
17. 17.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi smart plug (d) a pencil sharpener
18. 18.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) actuator (d) phone app
19. 19.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
20. 20.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) microcontroller (d) sensor
21. 21.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain wall switch
22. 22.What does the actuator do? (a) shows data to you (b) carries the data (c) reads values, decides (d) acts on a command
23. 23.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
24. 24.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) actuator (d) Wi-Fi
25. 25.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) shows data to you (d) stores data online
26. 26.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
29. 29.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
31. 31.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
34. 34.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) an app-controlled bulb (d) a plain table fan
35. 35.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a fitness band with app
36. 36.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a plain table fan (d) a fitness band with app
37. 37.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
39. 39.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device

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