Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 452 · 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.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) phone app (d) microcontroller
2. 2.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
3. 3.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
4. 4.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
5. 5.What does the microcontroller do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
6. 6.🔢 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
7. 7.🔢 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 sensor measures (c) the board reads it (d) the app shows it
8. 8.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi weather station
9. 9.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a battery torch (d) a fitness band with app
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
11. 11.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) cloud server (d) actuator
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
13. 13.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
14. 14.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a fitness band with app (d) a Wi-Fi doorbell camera
15. 15.🔢 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) the board reads it
16. 16.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a plain wall switch (d) a wind-up clock
17. 17.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a wind-up clock (d) a plain wall switch
18. 18.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
19. 19.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
20. 20.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi weather station (d) a plain table fan
21. 21.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
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 25 bytes. How many bytes do 150 readings take?
24. 24.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
25. 25.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) actuator (d) phone app
26. 26.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a smart energy meter (d) a plain wall switch
27. 27.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
32. 32.What does the Wi-Fi link do? (a) acts on a command (b) reads values, decides (c) carries the data (d) shows data to you
33. 33.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a Wi-Fi smart plug
34. 34.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
36. 36.What does the sensor do? (a) measures the real world (b) stores data online (c) reads values, decides (d) shows data to you
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
38. 38.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
39. 39.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a fitness band with app (d) a wind-up clock
40. 40.🔢 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

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