Circular Motion Pop Quiz

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

• Towards the sky

• Towards the Right

• Towards the left

• Towards the center of the circle

The velocity is always _____ to the line of a circle. 

• outwards
• towards the center
• tangent
• faster

Which statement is true about an object that is traveling in uniform circular motion?

• The speed of the object varies.
• The net force on the object is directed toward the center of the circular path.
• The direction of the object's velocity is constant.
• The net force on the object is directed away from the center of the circular path.

Which of the following is the unit for centripetal force?

• J
• m/s²
• kg⋅m/s
• N

The time taken for one complete circuit is called the... 

• Period
• Frequency 
• Angular velocity

If an object is spinning around on a string and the string was suddenly cut, the object would move in a

• curved path

• straight line

Why does an object experiencing uniform circular motion have an acceleration?

• because it ir changing speed

• because it is changing direction

• because it is moving n a straight line

• because it has mass

In this diagram, what do the red arrows represent?

• the acceleration vector

• the velocity vector

• the centripetal force vector

• the force of gravity

the process or act of turning or circling around something

• Curvature

• Rotation

• Radius

• Orbit

Centrifugal force is a ______

• force that pushes you to the outside of a circle during uniform circular motion.
• fictitious force that is really just the linear momentum of an object in uniform circular motion.  
• The force that keeps the planets in orbit