Circular Motion Review - 2A

Front

What is uniform circular motion?

Back

Uniform circular motion is the motion of an object traveling at a constant speed along a circular path.

Front

What causes acceleration in uniform circular motion?

Back

Acceleration in uniform circular motion is caused by the change in direction of the object's velocity, even if its speed remains constant.

Front

What is centripetal force?

Back

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

Front

What role does friction play in circular motion?

Back

Friction provides the centripetal force necessary for an object, like a car, to move in a circular path.

Front

What is the relationship between velocity and the radius of a circular path?

Back

The velocity of an object in circular motion is directly proportional to the radius of the circle and the angular velocity.

Front

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

Back

The acceleration vector in uniform circular motion always points towards the center of the circle.

Front

How does the speed of an object in uniform circular motion change?

Back

In uniform circular motion, the speed remains constant, but the direction of the velocity vector changes continuously.

Front

What happens to an object in circular motion if the centripetal force is removed?

Back

If the centripetal force is removed, the object will move in a straight line tangent to the circle at the point where the force was removed.

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 difference between centripetal force and centrifugal force?

Back

Centripetal force is the real force acting towards the center of the circle, while centrifugal force is a perceived force that appears to act outward on a mass moving in a circular path.