Circular Motion Concepts

Centripetal acceleration acts  ___________ of the circular path.

• towards the center
• along the circumference
• away from the center
• perpendicular to the plane

Centripetal acceleration is GREATER when...

• the radius of the circular motion is decreased
• the radius of the circular motion is increased
• the linear speed is decreased

In circular motion, the centripetal force is always directed towards...

• The center
• The tangent
• Away from the center
• Away from the tangent

In circular motion, the centripetal force is always directed ...

• Towards the center
• Tangent to the path
• Away from the center
• opposite to the velocity

Tags

NGSS.HS-PS2-1

Assuming Andromeda rotates at a uniform rate, which stars are moving the fastest?

• Stars closest to center
• Stars furthest from the center
• Stars with the hottest temperature
• Stars with the coldest temperature

Tags

NGSS.HS-PS2-4

NGSS.HS-ESS1-4

What is the difference between centripetal and centrifugal forces?

• Centripetal is towards center while centrifugal is away from the center.
• Centrifugal is towards center while centripetal is away from the center.
• Neither of the above is correct

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

Which of the following depict the velocity of the bowling ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

If the radius of the string is .3 meters long and the stopper makes 5 revolutions per second, what is the speed of the stopper? (Hint: C=2πr)

• 9.4 m/s
• 6.8 m/s
• 11.7 m/s
• 3.5 m/s

Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if the distance between them were divided by 2?

• 9
• 18
• 72
• 144

Tags

NGSS.HS-PS2-4