Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 779 · 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.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
3. 3.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
4. 4.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) actuator (d) phone app
5. 5.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
7. 7.What does the microcontroller do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) carries the data
8. 8.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
10. 10.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) actuator (d) sensor
11. 11.What does the phone app do? (a) carries the data (b) stores data online (c) shows data to you (d) reads values, decides
12. 12.🔢 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 app shows it (d) the board reads it
13. 13.What does the actuator do? (a) acts on a command (b) reads values, decides (c) carries the data (d) shows data to you
14. 14.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
16. 16.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
17. 17.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
19. 19.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) phone app (d) cloud server
20. 20.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
23. 23.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
25. 25.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
26. 26.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi smart plug
27. 27.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
28. 28.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
33. 33.🌐 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
34. 34.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a fitness band with app
35. 35.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
36. 36.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a wind-up clock (d) a plain table fan
37. 37.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
38. 38.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) cloud server (c) sensor (d) actuator
39. 39.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?

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