Uniform Circular Motion

 In the diagram below, a cart travels clockwise at constant speed in a horizontal circle. At the position shown in the diagram, which arrow indicates the direction of the centripetal acceleration of the cart?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

 In the diagram below, a cart travels clockwise at constant speed in a horizontal circle. At the position shown in the diagram, which arrow indicates the direction of the centripetal force of the cart?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

 A car moves with a constant speed in a clockwise direction around a circular path of radius r, as represented in the diagram When the car is in the position shown, its acceleration is directed toward the

• north
• south
• west
• east

Tags

NGSS.HS-PS2-1

 A car rounds a horizontal curve of constant radius at a constant speed. Which diagram best represents the directions of both the car’s velocity, v, and acceleration, a?

• 1
• 2
• 3
• 4

The diagram below represents a mass, m, being swung clockwise at constant speed in a horizontal circle. At the instant shown, the centripetal force acting on mass m is directed toward point

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

 A ball on a rope swings around a vertical pole. In which direction will the ball fly if released at the location shown?

• W
• X
• Y
• Z

Tags

NGSS.HS-PS2-1

 As the car goes around the curve, the centripetal force is directed

•  tangent to the curve in the direction of motion
•  tangent to the curve opposite the direction of motion
•  away from the center of the circular curve
•  toward the center of the circular curve

Tags

NGSS.HS-PS2-1

 Which of the following statements about circular motion is true?

•  An object undergoing constant circular motion is accelerating.
•  The centripetal force acting on an object moving in constant circular motion acts parallel to the direction of an object’s tangential velocity.
•  The greater the mass of an object, the smaller the centripetal force required to maintain its circular motion.
•  Radius and centripetal force are directly related.

The picture shows the circular path of a toy plane being swung around on a string. What path would the toy take if the string broke?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

A ball attached to a string is moved at constant speed in a horizontal circular path. A target is located near the path of the ball as shown in the diagram.
 At which point along the ball’s path should the string be released, if the ball is to hit the target? 

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1