Formative - Circular Motion

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

Tags

NGSS.HS-PS2-1

Which of the following increase the centripetal force?

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

A car with mass m travels around a curve with velocity v. What do you know about the centripetal force if the radius triples?

• 9.8?
• Force triples
• Force divides by 3
• Force divides by 9

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

• True
• False

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-PS2-4

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

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