uniform circular motion

Both centripetal force and centripetal acceleration are directed

• away from a central point

• toward a central point

• tangent to the radius

• opposite from each other

Tags

NGSS.HS-PS2-1

• 3.0 N

• 6.0 N

• 9.0 N

• 1.5 N

Tags

NGSS.HS-PS2-1

• 2.5 N

• 5.0 N

• 10.0 N

• 20.0 N

Tags

NGSS.HS-PS2-1

A car moving around a curve at a constant speed of 150 mph is accelerating.

• True, because it is moving at a constant speed.

• True, because it is changing direction.

• False, because it is not a constant velocity.

• False, because it is moving at a constant speed.

Tags

NGSS.HS-PS2-1

The mints rotating on top of the turntable all have the same tangential velocity.

• True

• False

If she lets go of the bucket, it will move in a straight line tangent to the circle.

• True

• False

Tags

NGSS.HS-PS2-1

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

• outwards
• towards the center
• tangent
• faster

During its trip a car of mass 1500kg is traveling around a corner as shown in the picture. The car rounds a corner of radius 100m at a speed of 15m/s. Find the centripetal force acting on the car.

• 300N

• 15000N

• 3375N

• 15N

Tags

NGSS.HS-PS2-1

What's the centripetal force of a 0.2 kg yoyo spun in a circle with a radius of .7 meters at a velocity of 3 m/s?

• 2.05 N

• 2.57 N

• 2.90 N

• 3.13 N

Tags

NGSS.HS-PS2-1

You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the radius of the circle.

• 18 N

• 36 N

• 72 N

• 144 N

Tags

NGSS.HS-PS2-1