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Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 22 · 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.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) Wi-Fi (d) actuator
  2. 2.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a fitness band with app (d) a plain wall switch
  3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
  4. 4.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) actuator (d) sensor
  5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
  6. 6.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
  7. 7.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
  8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
  9. 9.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a Wi-Fi smart plug
  10. 10.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a smart energy meter
  11. 11.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
  12. 12.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi smart plug
  13. 13.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a battery torch (d) a Wi-Fi weather station
  14. 14.🌐 Is a Wi-Fi smart plug 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 app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
  16. 16.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi weather station (d) an app-controlled bulb
  17. 17.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi weather station
  18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a smart energy meter (d) a pencil sharpener
  19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
  20. 20.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
  21. 21.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) actuator (d) microcontroller
  22. 22.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
  23. 23.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
  24. 24.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
  25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
  26. 26.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
  27. 27.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a plain table fan (d) an app-controlled bulb
  28. 28.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
  29. 29.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a plain table fan (d) a plain wall switch
  30. 30.What does the actuator do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
  31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
  32. 32.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
  33. 33.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
  34. 34.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi smart plug (d) a paper calendar
  35. 35.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) reads values, decides (d) stores data online
  36. 36.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a smart energy meter
  37. 37.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) phone app (d) cloud server
  38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
  39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
  40. 40.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it

Answer key

  1. actuator
  2. a fitness band with app
  3. an IoT device
  4. Wi-Fi
  5. 700
  6. lights on from an app
  7. not an IoT device
  8. 24
  9. a pencil sharpener
  10. a pencil sharpener
  11. 12
  12. a paper calendar
  13. a battery torch
  14. an IoT device
  15. it is sent by Wi-Fi
  16. a wind-up clock
  17. a plain wall switch
  18. a smart energy meter
  19. 2
  20. 12
  21. cloud server
  22. 24
  23. an IoT device
  24. 4
  25. 500
  26. not an IoT device
  27. a plain table fan
  28. an IoT device
  29. an app-controlled bulb
  30. acts on a command
  31. the cloud stores it
  32. 3000
  33. over Wi-Fi
  34. a Wi-Fi smart plug
  35. carries the data
  36. a plain table fan
  37. sensor
  38. 4250
  39. 1500
  40. the sensor measures

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