Arduino DC Motor Control Quiz

What is the main function of a DC motor in a robotics project?

• To measure temperature

• To produce sound

• To control the speed and direction of robotic movement

• To display text on an LED screen

Which component is commonly used to control the speed of a ceiling fan in a smart home setup?

• Potentiometer

• Buzzer

• LED

• Photoresistor

When Ishika powers up a DC motor with a positive voltage, which way does it typically groove to?

• Clockwise

• Counterclockwise

• Upward

• It depends on the motor's orientation

Which Arduino function is used to adjust the volume and frequency of a buzzer?

• tone()

• blink()

• playSound()

• changeTone()

What does PWM stand for in the context of DC motor control with Arduino?

• Power Wattage Measurement

• Pulse Width Modulation

• Permanent Wiring Module

• Photoresistor Waveform

Mira is working on a science project and needs to power a DC motor using an Arduino. What type of voltage should she use?

• Alternating Current (AC)

• Direct Current (DC)

• Both AC and DC

• Voltage is not required

How can you reverse the direction of rotation for a DC motor in a robotics project?

• By changing the voltage source

• By switching the motor's wires

• By pressing a button on the robotics controller

• By adjusting the motor's speed

What should you use to provide the appropriate voltage to power a DC motor in your Arduino project?

• A USB cable

• A 9V battery

• The computer's power supply

• The Arduino's 5V output

How can you control the speed of a DC motor using PWM in Arduino?

• By varying the voltage supplied to the motor

• By physically adjusting the motor's rotor

• By connecting more motors in parallel

• By using a larger motor

What happens if a DC motor is connected directly to an Arduino without a motor driver?

• The motor won't rotate.

• The motor will rotate at a fixed speed.

• The motor will rotate in only one direction.

• The Arduino will get damaged.