← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 113 · 40 questions
TalentJR

Remember (One chip, one job): Microcontroller = processor + memory + input/output pins on one chip. Board parts: USB port (power and code), pins, reset button, power LED, main chip, voltage regulator. Write the program → upload over USB → it runs its loop for ever; power by USB or a small battery.

NameDateTime takenScore ___ / 40
  1. 1.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the USB port (c) the main chip (d) the reset button
  2. 2.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  3. 3.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a bicycle bell (d) a smart watch
  4. 4.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  5. 5.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) a wall socket directly (d) USB or a 9 V battery
  6. 6.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) runs the program
  7. 7.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a wind-up toy (d) a digital alarm clock
  8. 8.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  9. 9.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  10. 10.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the main chip (c) the power LED (d) the voltage regulator
  11. 11.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) brings power and code
  12. 12.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it starts again (d) it stops forever
  13. 13.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a TV remote (d) a wind-up toy
  14. 14.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a toy robot (d) a candle
  15. 15.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a bicycle bell (d) a washing machine
  16. 16.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  17. 17.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  18. 18.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  19. 19.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a spinning top (d) a smart watch
  20. 20.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  21. 21.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  22. 22.True or false: a laptop has a built-in keyboard. (a) True (b) False
  23. 23.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a big desktop computer (d) a kind of bulb
  24. 24.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  27. 27.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  28. 28.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  29. 29.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the resistor (d) the USB cable
  30. 30.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  31. 31.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  32. 32.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  33. 33.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the USB port (d) the pins
  34. 34.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  35. 35.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  36. 36.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  37. 37.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a candle (d) a toy robot
  38. 38.Which job is done by the USB port? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  39. 39.Which of these has no microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a TV remote (d) a digital thermometer
  40. 40.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller

Answer key

  1. the reset button
  2. Yes
  3. a smart watch
  4. laptop
  5. USB or a 9 V battery
  6. keeps the voltage steady
  7. a digital alarm clock
  8. laptop
  9. laptop
  10. the power LED
  11. restarts the program
  12. it starts again
  13. a wind-up toy
  14. a candle
  15. a washing machine
  16. Yes
  17. True
  18. runs the program
  19. a spinning top
  20. False
  21. No
  22. True
  23. a computer on one chip
  24. Yes
  25. No
  26. False
  27. No
  28. False
  29. flash memory
  30. False
  31. False
  32. True
  33. the pins
  34. No
  35. True
  36. microcontroller
  37. a toy robot
  38. brings power and code
  39. a bicycle bell
  40. microcontroller

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids