Centripetal Force DOL

In a circular motion, the velocity is always _____ to the line of a circle. 

• outwards
• towards the center
• tangent
• faster

A horse gallops around a circular arena.  The centripetal force on the horse is ___.

• directed outward
• tension
• directed toward the center of the arena
• 9.8 N

Centripetal acceleration always points:

• in the direction of the object's motion
• in the opposite direction of the object's motion
• towards the center of the circle
• towards the outside of the circle

A particle P is moving in a circle with uniform speed. Which one of the following diagrams correctly shows the direction of the acceleration a and velocity v of the particle at one instant of time?

• A
• B
• C
• D

What is the direction of the tangential velocity at point B, if the ball is revolving clockwise?

• up

• right

• down

• left

What is the direction of the acceleration at point A, if the ball is revolving clockwise?

• up
• right
• down
• left

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 arrows/vectors represents the velocity of the ball?

• A

• B

• C

• D

What object experiences uniform circular motion?

• A car speeding up as it turns left
• A car traveling around a roundabout at a constant speed
• A car slowing down as it crests a tall hill
• A car traveling down the road at a constant speed

Tags

NGSS.HS-PS2-2

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

• outwards
• towards the center
• tangent
• faster