Circular Motion

Front

What is circular motion?

Back

Circular motion is the motion of an object that revolves around a fixed point or axis in a circular path.

Front

What is uniform circular motion?

Back

Uniform circular motion is when an object moves in a circular path at a constant speed.

Front

What is the direction of the net force in uniform circular motion?

Back

The net force is directed toward the center of the circular path.

Front

What happens to the speed of stars in a galaxy as their distance from the center increases?

Back

Stars furthest from the center move the fastest.

Front

What is the relationship between velocity and acceleration in circular motion?

Back

In circular motion, velocity is tangent to the circular path, while acceleration is directed toward the center.

Front

What is the formula for centripetal acceleration?

Back

Centripetal acceleration (a_c) is given by the formula a_c = v^2 / r, where v is the linear speed and r is the radius of the circular path.

Front

What is the role of centripetal force in circular motion?

Back

Centripetal force is the net force that acts on an object moving in a circular path, directed toward the center of the circle.

Front

How does the direction of velocity change in circular motion?

Back

The direction of velocity continuously changes in circular motion, even if the speed remains constant.

Front

What is the effect of increasing the radius on the speed of an object in uniform circular motion?

Back

Increasing the radius allows the object to move faster if the centripetal force remains constant.

Front

What is the direction of acceleration at any point in clockwise circular motion?

Back

The direction of acceleration is always directed toward the center of the circular path.