Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 79 · 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.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
3. 3.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
4. 4.What does the sensor do? (a) shows data to you (b) stores data online (c) measures the real world (d) acts on a command
5. 5.🔢 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) it is sent by Wi-Fi (d) the cloud stores it
6. 6.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
7. 7.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a battery torch (d) an app-controlled bulb
8. 8.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
10. 10.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
11. 11.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a plain table fan
12. 12.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 In an IoT system, which part carries the data? (a) actuator (b) sensor (c) Wi-Fi (d) cloud server
14. 14.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a pencil sharpener (d) a fitness band with app
15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
16. 16.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) a fitness band with app (d) an app-controlled bulb
17. 17.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a battery torch (d) a fitness band with app
18. 18.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain wall switch
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
20. 20.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
21. 21.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) microcontroller (d) Wi-Fi
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
23. 23.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) acts on a command
24. 24.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi smart plug
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
26. 26.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain table fan
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
30. 30.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
31. 31.What does the cloud server do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) stores data online
32. 32.🌐 In an IoT system, which part measures the real world? (a) actuator (b) Wi-Fi (c) sensor (d) phone app
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
34. 34.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) sensor (d) cloud server
35. 35.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a plain wall switch
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
37. 37.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
39. 39.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a plain wall switch (d) a wind-up clock

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