Circular Motion Basics

What is uniform circular motion?

• Motion of an object in a circular path at a constant speed.

• Motion of an object in a straight line at a constant speed.

• Motion of an object in a circular path at a varying speed.

• Motion of an object in a random path.

What is the direction of the acceleration in uniform circular motion?

• Opposite to the velocity direction

• Towards the center of the circle

• Away from the center of the circle

• Tangential to the circle

What is the formula for centripetal acceleration?

• a = v * r

• a = v + r

• a = r / v

• a = v^2 / r

Explain the concept of centripetal force in uniform circular motion.

• Centripetal force acts tangentially to the circle's radius

• Centripetal force is not necessary for maintaining circular motion

• Centripetal force is required to maintain the object's circular motion by continuously changing its direction towards the center of the circle.

• Centripetal force pushes the object away from the center of the circle

How does the speed of an object in uniform circular motion affect the centripetal force required?

• The centripetal force required increases as the speed of the object in uniform circular motion increases.

• The centripetal force required is not affected by the speed of the object in uniform circular motion.

• The centripetal force required remains constant regardless of the speed of the object in uniform circular motion.

• The centripetal force required decreases as the speed of the object in uniform circular motion increases.

What is the relationship between the radius of the circle and the centripetal force?

• The relationship between the radius of the circle and the centripetal force is that the centripetal force is inversely proportional to the radius of the circle.

• The centripetal force decreases exponentially with the radius of the circle

• The radius of the circle has no effect on the centripetal force

• The centripetal force increases linearly with the radius of the circle

Discuss the difference between tangential speed and angular speed in circular motion.

• Tangential speed is the speed of rotation, while angular speed is the linear speed.

• Tangential speed is the linear speed along the circular path, while angular speed is the rate of rotation.

• Tangential speed is the speed at the center of the circle, while angular speed is the speed at the circumference.

• Tangential speed is measured in radians per second, while angular speed is measured in meters per second.

How is the period of revolution related to the frequency of circular motion?

• The period of revolution is directly proportional to the frequency of circular motion.

• The period of revolution is equal to the frequency of circular motion.

• The period of revolution has no relation to the frequency of circular motion.

• The period of revolution is inversely related to the frequency of circular motion.

Explain the concept of angular velocity in uniform circular motion.

• Angular velocity is defined as the change in angular displacement divided by the change in time, typically denoted by the symbol omega (ω). It is measured in radians per second (rad/s).

• Angular velocity is constant throughout the circular motion.

• Angular velocity is measured in meters per second (m/s).

• Angular velocity is the rate of change of linear velocity in circular motion.

What is the relationship between angular velocity and linear velocity in circular motion?

• linear velocity = radius / angular velocity

• linear velocity = angular velocity + radius

• linear velocity = angular velocity * radius

• linear velocity = angular velocity / radius