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Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 344 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a paper calendar (d) a plain wall switch
  2. 2.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
  3. 3.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
  4. 4.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
  5. 5.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
  6. 6.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a battery torch (d) a Wi-Fi smart plug
  7. 7.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
  8. 8.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a battery torch (d) a plain table fan
  9. 9.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
  10. 10.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
  11. 11.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain table fan
  12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
  13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
  14. 14.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
  15. 15.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
  16. 16.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
  17. 17.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
  18. 18.What does the microcontroller do? (a) shows data to you (b) stores data online (c) carries the data (d) reads values, decides
  19. 19.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a paper calendar (d) a pencil sharpener
  20. 20.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) cloud server (c) sensor (d) phone app
  21. 21.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 doorbell camera
  22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
  23. 23.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
  24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
  25. 25.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
  26. 26.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a plain wall switch (d) a paper calendar
  27. 27.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
  28. 28.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi smart plug
  29. 29.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
  30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
  31. 31.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a pencil sharpener
  32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
  33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
  34. 34.What does the phone app do? (a) measures the real world (b) carries the data (c) shows data to you (d) reads values, decides
  35. 35.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) sensor (d) actuator
  36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
  37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
  38. 38.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
  39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
  40. 40.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?

Answer key

  1. a Wi-Fi smart plug
  2. 14
  3. 20
  4. 36
  5. an IoT device
  6. a battery torch
  7. 36
  8. a smart energy meter
  9. not an IoT device
  10. over Wi-Fi
  11. a plain table fan
  12. 72
  13. 48
  14. an IoT device
  15. the board reads it
  16. not an IoT device
  17. 8
  18. reads values, decides
  19. a Wi-Fi smart plug
  20. sensor
  21. a Wi-Fi doorbell camera
  22. 750
  23. 24
  24. 10000
  25. not an IoT device
  26. an app-controlled bulb
  27. an IoT device
  28. a wind-up clock
  29. an IoT device
  30. 60
  31. a pencil sharpener
  32. 2750
  33. 12
  34. shows data to you
  35. actuator
  36. 30
  37. 9
  38. not an IoT device
  39. the app shows it
  40. 20

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