Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 175 · 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.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a microwave oven (d) a spinning top
2. 2.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
3. 3.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
4. 4.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
5. 5.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a toy robot (d) a plain wall switch
6. 6.True or false: a laptop runs many apps at once. (a) False (b) True
7. 7.True or false: a laptop has a built-in keyboard. (a) False (b) True
8. 8.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
9. 9.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
10. 10.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
11. 11.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
12. 12.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
13. 13.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a toy robot (d) a candle
14. 14.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a spinning top (d) a candle
15. 15.Which job is done by the main chip? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) runs the program
16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the voltage regulator (d) the pins
17. 17.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
18. 18.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) USB or a 9 V battery (d) a 230 V cable
20. 20.True or false: a microcontroller runs many apps at once. (a) True (b) False
21. 21.True or false: a laptop needs much more power. (a) False (b) True
22. 22.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
23. 23.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) drawn with a pen (d) sent by sound
24. 24.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
25. 25.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
26. 26.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
27. 27.True or false: a laptop has no screen of its own. (a) False (b) True
28. 28.Which of these has no microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a digital alarm clock (d) a smart watch
29. 29.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
30. 30.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
31. 31.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
32. 32.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
33. 33.True or false: a microcontroller uses very little power. (a) False (b) True
34. 34.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the voltage regulator (c) the reset button (d) the pins
35. 35.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a smart watch (d) a candle
36. 36.True or false: a microcontroller runs one small program. (a) True (b) False
37. 37.True or false: a washing machine has no microcontroller inside. (a) True (b) False
38. 38.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the USB port (d) the pins
39. 39.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the main chip (d) the pins
40. 40.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True

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