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Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 347 · 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 weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
  2. 2.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
  3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
  4. 4.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
  5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
  6. 6.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
  7. 7.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
  8. 8.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
  9. 9.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
  10. 10.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
  11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
  12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
  13. 13.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) sensor (d) actuator
  14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
  15. 15.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a wind-up clock
  16. 16.What does the cloud server do? (a) carries the data (b) stores data online (c) reads values, decides (d) measures the real world
  17. 17.What does the sensor do? (a) carries the data (b) stores data online (c) measures the real world (d) reads values, decides
  18. 18.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
  19. 19.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
  20. 20.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a Wi-Fi weather station
  21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a fitness band with app
  22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
  23. 23.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) actuator (d) phone app
  24. 24.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
  25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
  26. 26.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
  27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
  28. 28.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
  29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
  30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
  31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
  32. 32.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
  33. 33.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a plain table fan (d) a pencil sharpener
  34. 34.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
  35. 35.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
  36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
  37. 37.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi weather station
  38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a plain table fan (d) a battery torch
  39. 39.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
  40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?

Answer key

  1. 32
  2. the cloud stores it
  3. 1900
  4. over Wi-Fi
  5. 2200
  6. 12
  7. an IoT device
  8. an IoT device
  9. 60
  10. 3750
  11. 5000
  12. 20
  13. sensor
  14. the board reads it
  15. a Wi-Fi doorbell camera
  16. stores data online
  17. measures the real world
  18. the sensor measures
  19. 9
  20. a plain table fan
  21. a wind-up clock
  22. 36
  23. phone app
  24. not an IoT device
  25. the board reads it
  26. not an IoT device
  27. 12
  28. the app shows it
  29. 24
  30. 16
  31. 4500
  32. not an IoT device
  33. a smart energy meter
  34. an IoT device
  35. Internet of Things
  36. 54
  37. a plain wall switch
  38. a fitness band with app
  39. 6
  40. 3

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