← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. No
  2. USB or a 9 V battery
  3. shows the board is on
  4. a spinning top
  5. a digital thermometer
  6. the USB port
  7. the reset button
  8. a wind-up toy
  9. flash memory
  10. laptop
  11. laptop
  12. runs the program
  13. Yes
  14. a microwave oven
  15. True
  16. Yes
  17. True
  18. Yes
  19. False
  20. Yes
  21. the power LED
  22. False
  23. microcontroller
  24. a candle
  25. a TV remote
  26. it starts again
  27. False
  28. a computer on one chip
  29. connect sensors and LEDs
  30. a hand pump
  31. False
  32. False
  33. laptop
  34. microcontroller
  35. No
  36. a smart watch
  37. False
  38. True
  39. True
  40. the main chip

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