UCM Review (Conceptual)

Front

Centrifugal force is a ______

Back

fictitious force that is really just the linear motion of an object in uniform circular motion.

Front

Compare the direction of the object's velocity and acceleration vectors in uniform circular motion.

Back

The vectors are perpendicular.

Front

What represents the acceleration of an object in circular motion?

Back

The direction of the acceleration vector points towards the center of the circular path.

Front

Is it possible for an object moving with a constant speed to accelerate? Explain.

Back

Yes, although the speed is constant, the direction of the velocity can be changing.

Front

What type of force acts towards the center when a car goes around a curve?

Back

Ff (Frictional force) acts towards the center.

Front

Define uniform circular motion.

Back

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

Front

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

Back

Speed is scalar; velocity is a vector that includes direction.

Front

What is centripetal acceleration?

Back

Acceleration directed towards the center of a circular path.

Front

What is the formula for centripetal acceleration?

Back

a_c = v^2 / r, where v is the speed and r is the radius.

Front

What role does friction play in circular motion?

Back

Friction provides the necessary centripetal force to keep the object moving in a circle.