Circular Motion

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

What is the difference between rotation and revolution?

• Rotation is around another object while revolution is around its own axis.
• Rotation is on its own axis while revolution is around another object.
• They are the same
• Rotation is faster

Tags

NGSS.HS-ESS1-4

What does RPM stand for?

• Speed of a straight line
• speed of a circle
• Revolutions Per Minute
• Rotations Per MInute

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

• outwards
• towards the center
• tangent
• faster

Period is measured in cycles per second

• True
• False

Tags

NGSS.HS-PS4-1

Bruno the bat flies at a speed of 0.5 m/s in circle of radius 1 m. What is his acceleration?

• 0.25 ms^-2
• 0.5 ms^-2
• 1 ms^-2
• 2 ms^-2

Tags

NGSS.HS-PS2-1

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

Which of the following terms means "center seeking"?

• centrifugal
• centrifuge
• centripetal
• centenarian

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

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1