Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 556 · 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) sensor (b) phone app (c) actuator (d) microcontroller
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
5. 5.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
6. 6.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi weather station
7. 7.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a smart energy meter (d) a plain table fan
8. 8.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) sensor (d) Wi-Fi
11. 11.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) cloud server (d) phone app
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
13. 13.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🔢 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 cloud stores it (d) the sensor measures
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
17. 17.What does the phone app do? (a) stores data online (b) measures the real world (c) acts on a command (d) shows data to you
18. 18.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
20. 20.What does the actuator do? (a) acts on a command (b) reads values, decides (c) stores data online (d) measures the real world
21. 21.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a battery torch (d) a wind-up clock
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
23. 23.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi smart plug
24. 24.🔢 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
25. 25.Which of these is not an IoT device? (a) a fitness band with app (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi weather station
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
27. 27.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
30. 30.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
31. 31.What does the sensor do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) stores data online
32. 32.What does the cloud server do? (a) carries the data (b) acts on a command (c) measures the real world (d) stores data online
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
34. 34.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
36. 36.🔢 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
37. 37.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a smart energy meter (d) a fitness band with app
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
39. 39.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔢 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

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