Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 38 · 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.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
2. 2.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain table fan
3. 3.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
7. 7.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a Wi-Fi weather station (d) a fitness band with app
8. 8.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a plain wall switch (d) a plain table fan
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
12. 12.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
13. 13.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a fitness band with app (d) a paper calendar
14. 14.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) reads values, decides (d) acts on a command
15. 15.🔢 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
16. 16.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a battery torch (d) a plain wall switch
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain wall switch (d) a paper calendar
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
19. 19.🔢 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
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) microcontroller (d) phone app
23. 23.🔢 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
24. 24.🏠 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
25. 25.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) actuator (d) microcontroller
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
27. 27.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi weather station
28. 28.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi doorbell camera
29. 29.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
30. 30.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a wind-up clock (d) a plain wall switch
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
32. 32.What does the cloud server do? (a) reads values, decides (b) stores data online (c) shows data to you (d) carries the data
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a fitness band with app (d) a Wi-Fi smart plug
34. 34.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain table fan
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
36. 36.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a wind-up clock
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a smart energy meter (d) a paper calendar
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain wall switch
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?

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