Circular Motion Review - 8B

Front

What happens to an object in circular motion if the string is cut?

Back

The object moves in a straight line.

Front

What is the direction of acceleration for a ball revolving clockwise at point B?

Back

Left.

Front

What is the unit for centripetal force?

Back

Newton (N).

Front

Centripetal force is an acceleration of an object moving in a circular path whose direction is __________ of the circular path.

Back

Towards the center.

Front

Where is the net force when the rollercoaster is at the top of the loop?

Back

Towards the center of the circle.

Front

Define centripetal acceleration.

Back

The acceleration directed towards the center of a circular path, calculated as a_c = v²/r.

Front

What is the formula for centripetal force?

Back

F_c = m * a_c, where a_c = v²/r.

Front

Explain the relationship between speed and radius in circular motion.

Back

As the radius increases, for a constant centripetal force, the speed of the object must decrease.

Front

What is the effect of increasing mass on centripetal force?

Back

Increasing mass increases the centripetal force required to maintain circular motion.

Front

What is the role of tension in circular motion?

Back

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