Circular Motion Review - 7B

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 tangential speed?

Back

The speed of an object moving along a circular path, measured at any point along the path.

Front

What is centripetal acceleration?

Back

The acceleration that points towards the center of the circle, keeping the object in circular motion.

Front

What is the unit of centripetal force?

Back

Newton (N) is the unit for centripetal force.

Front

In which direction does centripetal acceleration point?

Back

Towards the center of the circle.

Front

What is the formula for centripetal acceleration?

Back

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

Front

What is the relationship between tangential speed and radius in circular motion?

Back

Tangential speed increases with an increase in radius for a constant angular speed.

Front

What is the definition of centripetal force?

Back

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

Front

How does mass affect centripetal force?

Back

Centripetal force increases with an increase in mass, as F_c = m * a_c.

Front

What is the difference between linear speed and angular speed?

Back

Linear speed is the distance traveled per unit time, while angular speed is the angle rotated per unit time.