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

Tags

NGSS.HS-PS2-1

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

A car is rounding a bend as shown in the diagram. Which arrow correctly shows the direction of the cars velocity?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

A car is rounding a curve as shown in the diagram. Which arrow correctly shows the direction of the centripetal force keeping the car in circular motion?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

A bola is an old hunting instrument. If three rocks with a combined mass of 0.75 kg are spun at a speed of 20 m/s with a radius of 0.5 m, how much centripetal force is required to keep them spinning.

• 600 N

• 45 N

• 30 N

• 400 N

Tags

NGSS.HS-PS2-1

Which of the following terms means "center seeking"?

• centrifugal
• centrifuge
• centripetal
• centenarian

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