Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 755 · 40 questions

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.

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

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