Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 457 · 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.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
3. 3.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) stores data online (d) shows data to you
4. 4.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
6. 6.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
7. 7.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
8. 8.What does the actuator do? (a) stores data online (b) carries the data (c) reads values, decides (d) acts on a command
9. 9.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
10. 10.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi doorbell camera
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
12. 12.🌐 In an IoT system, which part carries the data? (a) actuator (b) phone app (c) cloud server (d) Wi-Fi
13. 13.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) reads values, decides (d) carries the data
14. 14.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
16. 16.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
17. 17.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) phone app (d) microcontroller
18. 18.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
20. 20.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a pencil sharpener (d) a Wi-Fi weather station
21. 21.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi smart plug
22. 22.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
24. 24.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
25. 25.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
26. 26.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
28. 28.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) actuator (c) cloud server (d) phone app
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
31. 31.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain wall switch (d) a battery torch
32. 32.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
34. 34.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) actuator (d) microcontroller
35. 35.What does the cloud server do? (a) stores data online (b) carries the data (c) shows data to you (d) measures the real world
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
37. 37.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a smart energy meter (d) a battery torch
38. 38.🌐 Is a Wi-Fi doorbell camera 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 1 minute?
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?

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