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Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 560 · 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.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
  2. 2.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
  3. 3.🌐 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
  4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
  5. 5.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) actuator (d) sensor
  6. 6.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
  7. 7.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
  8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
  9. 9.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) phone app (d) microcontroller
  10. 10.🔢 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
  11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
  12. 12.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) phone app (d) sensor
  13. 13.What does the microcontroller do? (a) stores data online (b) carries the data (c) measures the real world (d) reads values, decides
  14. 14.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
  15. 15.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a smart energy meter
  16. 16.🌐 Is a fitness band with app 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.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a fitness band with app (d) a plain wall switch
  19. 19.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a pencil sharpener
  20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
  21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) it is sent by Wi-Fi
  22. 22.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
  23. 23.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi smart plug (d) a paper calendar
  24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
  25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
  26. 26.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
  27. 27.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
  28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
  29. 29.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi smart plug
  30. 30.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
  31. 31.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
  32. 32.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
  33. 33.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller
  34. 34.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
  35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
  36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
  37. 37.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
  38. 38.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) stores data online (d) reads values, decides
  39. 39.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
  40. 40.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a wind-up clock (d) a pencil sharpener

Answer key

  1. not an IoT device
  2. lights on from an app
  3. over Wi-Fi
  4. 4000
  5. Wi-Fi
  6. not an IoT device
  7. 12
  8. 12
  9. microcontroller
  10. the sensor measures
  11. 2200
  12. sensor
  13. reads values, decides
  14. Internet of Things
  15. a pencil sharpener
  16. an IoT device
  17. 8
  18. a fitness band with app
  19. a Wi-Fi doorbell camera
  20. 12
  21. the board reads it
  22. an IoT device
  23. a Wi-Fi smart plug
  24. it is sent by Wi-Fi
  25. 200
  26. 15
  27. 36
  28. 12
  29. a plain wall switch
  30. not an IoT device
  31. 15
  32. 12
  33. phone app
  34. not an IoT device
  35. 108
  36. 3
  37. an IoT device
  38. carries the data
  39. the cloud stores it
  40. a smart energy meter

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