← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 514 · 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.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  2. 2.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  3. 3.True or false: a laptop uses very little power. (a) False (b) True
  4. 4.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  5. 5.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  6. 6.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  7. 7.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the main chip (c) the pins (d) the power LED
  10. 10.True or false: a laptop needs much more power. (a) False (b) True
  11. 11.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a digital alarm clock (d) a microwave oven
  12. 12.True or false: a microcontroller has no screen of its own. (a) False (b) True
  13. 13.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the reset button (d) the main chip
  14. 14.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a spinning top (d) a candle
  15. 15.Which of these has no microcontroller inside? (a) a candle (b) a smart watch (c) a washing machine (d) a TV remote
  16. 16.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a spinning top (d) a smart watch
  17. 17.Which job is done by the pins? (a) shows the board is on (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  18. 18.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a digital thermometer (d) a bicycle bell
  19. 19.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
  20. 20.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  21. 21.Which of these usually has a microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a spinning top (d) a candle
  22. 22.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  23. 23.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  24. 24.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the USB cable (d) the resistor
  25. 25.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  26. 26.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  27. 27.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it starts again (d) it deletes itself
  28. 28.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  29. 29.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  31. 31.True or false: a microcontroller runs one small program. (a) False (b) True
  32. 32.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  33. 33.Which of these has no microcontroller inside? (a) a TV remote (b) a hand pump (c) a microwave oven (d) a digital thermometer
  34. 34.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a spinning top (d) a hand pump
  35. 35.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  36. 36.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  37. 37.True or false: a laptop runs one small program. (a) True (b) False
  38. 38.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the voltage regulator (d) the main chip
  39. 39.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True

Answer key

  1. a computer on one chip
  2. laptop
  3. False
  4. False
  5. False
  6. laptop
  7. Yes
  8. microcontroller
  9. the pins
  10. True
  11. a spinning top
  12. True
  13. the main chip
  14. a microwave oven
  15. a candle
  16. a smart watch
  17. connect sensors and LEDs
  18. a bicycle bell
  19. uploaded over USB
  20. False
  21. a toy robot
  22. microcontroller
  23. restarts the program
  24. flash memory
  25. USB or a 9 V battery
  26. laptop
  27. it starts again
  28. True
  29. Yes
  30. False
  31. True
  32. brings power and code
  33. a hand pump
  34. a digital alarm clock
  35. False
  36. True
  37. False
  38. the USB port
  39. No
  40. False

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