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Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 529 · 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.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
  2. 2.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
  3. 3.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
  4. 4.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
  5. 5.🔢 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
  6. 6.🔢 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
  7. 7.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a battery torch
  8. 8.What does the phone app do? (a) acts on a command (b) shows data to you (c) carries the data (d) reads values, decides
  9. 9.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
  10. 10.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
  11. 11.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a candle in a jar (d) a printed map
  12. 12.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
  13. 13.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a wind-up clock (d) a fitness band with app
  14. 14.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) microcontroller (d) Wi-Fi
  15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
  16. 16.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a fitness band with app
  17. 17.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
  18. 18.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
  19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
  20. 20.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a plain wall switch (d) a pencil sharpener
  21. 21.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi smart plug
  22. 22.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a battery torch
  23. 23.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
  24. 24.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
  25. 25.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
  26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
  27. 27.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
  28. 28.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi smart plug
  29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
  30. 30.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
  31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
  32. 32.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) actuator (d) cloud server
  33. 33.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) Wi-Fi (d) sensor
  34. 34.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
  35. 35.What does the microcontroller do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) stores data online
  36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
  37. 37.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
  38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
  39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
  40. 40.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a wind-up clock

Answer key

  1. 36
  2. 24
  3. not an IoT device
  4. not an IoT device
  5. the sensor measures
  6. the app shows it
  7. a Wi-Fi smart plug
  8. shows data to you
  9. over Wi-Fi
  10. 8
  11. lights on from an app
  12. not an IoT device
  13. a wind-up clock
  14. sensor
  15. 12
  16. a pencil sharpener
  17. 72
  18. an IoT device
  19. 24
  20. a smart energy meter
  21. a paper calendar
  22. a battery torch
  23. 18
  24. an IoT device
  25. a plain table fan
  26. 18
  27. not an IoT device
  28. a wind-up clock
  29. 8
  30. 7
  31. 12
  32. Wi-Fi
  33. phone app
  34. not an IoT device
  35. reads values, decides
  36. 1600
  37. an IoT device
  38. the sensor measures
  39. 400
  40. a smart energy meter

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