Circular Motion Review

Front

What supplies the centripetal force requirement for a car to move in a horizontal circle?

Back

Friction force.

Front

What direction does the centripetal force cause an object moving in a circular path to accelerate?

Back

Towards the centre of the circular path.

Front

What is true about an object in uniform circular motion?

Back

The net force on the object is directed toward the center of the circular path.

Front

What represents the acceleration of an object in circular motion?

Back

Acceleration is directed towards the center of the circle.

Front

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

Back

Towards the center of the circle.

Front

Define centripetal force.

Back

The net force required to keep an object moving in a circular path, directed towards the center of the circle.

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

Back

The centripetal force increases.

Front

What is the relationship between radius and centripetal force?

Back

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

Front

What is uniform circular motion?

Back

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