Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 333 · 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.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
2. 2.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) sensor (d) microcontroller
3. 3.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
4. 4.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a paper calendar (d) a pencil sharpener
5. 5.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
6. 6.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
7. 7.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) cloud server (d) actuator
8. 8.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a fitness band with app (d) a pencil sharpener
10. 10.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) actuator (d) microcontroller
11. 11.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
12. 12.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔢 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
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain wall switch
15. 15.What does the phone app do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) stores data online
16. 16.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a battery torch
17. 17.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi smart plug
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
19. 19.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) microcontroller (d) phone app
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
22. 22.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a plain table fan (d) a pencil sharpener
23. 23.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
25. 25.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a pencil sharpener (d) a paper calendar
27. 27.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) an app-controlled bulb (d) a plain wall switch
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
29. 29.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) microcontroller (d) phone app
30. 30.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a pencil sharpener (d) a paper calendar
31. 31.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
32. 32.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
34. 34.What does the cloud server do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) a paper calendar (c) an app-controlled bulb (d) a Wi-Fi smart plug
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
37. 37.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain table fan (d) a smart energy meter
40. 40.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) carries the data (d) stores data online

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