centripetal acceleration mia

Centripetal force is an acceleration of an object moving in circular path whose direction is _________________________of the circular path and whose magnitude is equal to the square of the speed divided by the radius.

• towards the tangent

• towards the centre

• towards the minimum point

• towards the maximum point

Tags

NGSS.HS-PS2-4

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

Tags

NGSS.HS-PS2-1

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.

________________________ defined as the number of revolutions (cycles/rotations) completed in one second.

• frequency

• period

• distance

• centripetal acceleration

Tags

NGSS.HS-PS4-1

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

Which of the following depict the speed of the blowing ball?

• A
• B
• C
• D

Tags

NGSS.MS-PS3-1

The _______________________ supplies the centripetal force requirement for the car to move in a horizontal circle. Without it, the car would turn its wheels but would not move in a circle (as is the case on an icy surface).

• friction force

• centrifugal force

• normal force

• applied force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A dolphin swims in a circle with a radius of 30 m and moves with a velocity of 3.2 m/s. What is the dolphin’s centripetal acceleration?

• 0.341 m/s^2

• 0.106 m/s^2

• 96 m/s^2

• 307.2 m/s^2

Tags

NGSS.HS-PS2-1

An ice skater with a mass of 75 kg skates in a circle that has a radius of 22.3 meters. The ice skater takes 9.17 seconds to complete a lap. What is the ice skater’s force?

• 0.265 N

• 5.914 N

• 19.890 N

• 182.388 N

Tags

NGSS.HS-PS2-1