Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 903 · 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 the odd one out? (a) a wind-up clock (b) a paper calendar (c) a smart energy meter (d) a plain wall switch
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi smart plug (d) a pencil sharpener
3. 3.What does the Wi-Fi link do? (a) measures the real world (b) acts on a command (c) shows data to you (d) carries the data
4. 4.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a wind-up clock (d) a paper calendar
5. 5.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
7. 7.🔢 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
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
10. 10.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a plain table fan (d) a plain wall switch
12. 12.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
13. 13.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) shows data to you
14. 14.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a paper calendar
15. 15.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain wall switch
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
17. 17.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) microcontroller (d) Wi-Fi
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
20. 20.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a Wi-Fi smart plug
21. 21.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) phone app (d) microcontroller
22. 22.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a plain wall switch (d) a paper calendar
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
24. 24.What does the phone app do? (a) carries the data (b) shows data to you (c) acts on a command (d) stores data online
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
27. 27.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) Wi-Fi
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
30. 30.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
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.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
34. 34.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
35. 35.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a Wi-Fi weather station
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
37. 37.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔢 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
39. 39.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a pencil sharpener
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?

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