Question 1
The study of Uniform Circular Motion relates to objects
traveling with constant speed around a circle with radius, R. Since
the object has a constant speed along a circular path, we can also
say that

A)

the object has zero velocity.



B)

the object has a constant acceleration magnitude.



C)

the object has zero acceleration.



D)

the object has a constant velocity.



E)

the object has an increasing acceleration.


Question 2
Uniform Circular Motion (UCM) problems are just a special case
of Newton’s 2^{nd} law. In these problems, you must define
two orthogonal directions similar to the way the “x” and “y”
directions are usually defined. In the case of UCM, however, the
two directions are the “y” direction and the “c” direction, which
is

A)

centrifugal direction which means seeking the outer rim.



B)

colonial direction which means seeking to end taxation without
representation.



C)

circular direction which means seeking the circumference.



D)

centripetal direction which means seeking the center.



E)

cellophane direction which means seeking to be absolutely
clear.


Question 3
You are riding in a friend's new Corvette with the 5point
harness securing you in the cockpit. He takes a hard turn to the
left at 120 mph (in a 50 mph zone). You feel pressed
against the right side of the car because

A)

there is a force acting on you pushing you to the right, or the
outside of the circle.



B)

there is a force acting on the car pushing it to the left, or
the inside of the circle.



C)

there is a pair of forces pushing the tires one way and the
exhaust pipe in the other.



D)

there is a force acting on the earth causing it to rotate more
quickly.



E)

you are leaning to the right as consequence of Newton’s
universal gravitational force.


Question 4
A swinging ball is in a horizontal circular motion once it is
attached to a string. If the ball is released from the string, it
will move:

A)

In an unknown direction relative to the release point.



B)

Away from the center of the circle.



C)

Continues to move along the circle for a short distance.



D)

Along the tangent to the circle.



E)

Who cares, what direction.

