Centripetal Force

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

Tags

NGSS.HS-PS2-1

What relationship exists between the radius of a circle and the centripetal acceleration?

• direct
• inverse
• exponential
• inverse squared

Which of the following is the unit for centripetal force?

• J
• m/s²
• kg⋅m/s
• N

What is the relationship between centripetal force and the mass of an object?

• direct
• inverse
• exponential
• inverse squared

Which of the following increase the centripetal force?

• Increasing the radius
• Increasing the velocity
• Decreasing the mass
• Decreasing the acceleration

Calculate the amount of centripetal force it takes for a softball pitcher to rotate a ball with a velocity of 3 m/s if the ball weighs .12 kg and her arm is .65 meters long.

• .38
• 1.23
• .55
• 1.66 N

Tags

NGSS.HS-PS2-1

When an object is in circular motion it is constantly changing its velocity.

• True
• False

Tags

NGSS.HS-PS2-1

The centripetal force of satellites is similar to gravitational force because they are both a net force towards the center of earth.

• True
• False

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

If centripetal force stopped acting on all satellites they would continue traveling in space in a constant direction and constant speed.

• True
• False

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-2

Decreasing the radius when making a turn allows you to____?

• Increase your friction
• Keep a high speed
• Change your inertia
• Decrease gravitational pull

Tags

NGSS.HS-PS2-1