Circular Motion Review

Front

What is the force that keeps an object moving in a circular path?

Back

Centripetal force.

Front

What is the direction of the velocity vector in circular motion?

Back

Tangent to the circle.

Front

How do you calculate the tangential speed of an object moving in a circle?

Back

Tangential speed = Circumference of the circle / Time for one complete revolution.

Front

What is the formula for the centripetal acceleration of an object in circular motion?

Back

Centripetal acceleration = v² / r, where v is the tangential speed and r is the radius.

Front

What happens to the centripetal force if the speed of the object increases?

Back

The centripetal force must increase to maintain circular motion.

Front

In circular motion, what is the relationship between radius and centripetal force?

Back

For a constant speed, increasing the radius decreases the centripetal force.

Front

What is the role of friction in a car going around a curve?

Back

Friction provides the centripetal force needed to keep the car moving in a circular path.

Front

What is the effect of mass on centripetal force?

Back

Centripetal force is directly proportional to the mass of the object.

Front

How does the direction of centripetal force relate to the motion of the object?

Back

Centripetal force always points toward the center of the circular path.

Front

What is the significance of the term 'instantaneous velocity' in circular motion?

Back

Instantaneous velocity refers to the velocity of the object at a specific point in its circular path.