Circular Motion

Zoe is observing a particle P moving in a circle with uniform speed during her physics experiment. Which one of the following diagrams correctly shows the direction of the acceleration a and velocity v of the particle at one instant of time?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

Avery, Samuel, and Mia are observing a ball being swung in a circle. Which arrow represents the acceleration of the ball?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

Abigail is spinning a ball attached to a string in a circular motion. What relationship exists between the radius of the circle and the centripetal acceleration experienced by the ball?

• direct

• inverse

• exponential

• inverse squared

Avery, Aria, and Lily are observing a ball moving in a counter-clockwise direction around a circular track. Which of the following options represents the acceleration of the ball?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

Emma, Mia, and Priya are observing a car rounding a curve on a racetrack. They are discussing the direction of the centripetal force keeping the car in circular motion. Which arrow correctly shows the direction of the centripetal force?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

Isla is driving her car on a circular track. At a particular instant, in which direction is the car's centripetal acceleration directed?

• Toward the center of the circle

• Toward the north

• Toward the west

• Clockwise

When Mason, Ava, and Mia are riding a rollercoaster, where is the net force acting on them when they are at the top of the loop?

• Towards the sky

• Towards the Right

• Towards the left

• Towards the ground

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Aria, Charlotte, and James are discussing the physics behind a car moving in a horizontal circle. They agree that the _______________________ supplies the centripetal force requirement for the car to move in a 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

A 10kg car travels at a constant speed of 20.0 m/s around a horizontal circular track. Which diagram correctly represent the direction of the car's velocity (v) and the direction of the centripetal force (Fc) acting on the car at a particular moment?

• 
• 
• 
• 

Tags

NGSS.HS-PS2-1

Aria is swinging a ball attached to a string around in a circle with a radius of 1.65 m. If the ball has an acceleration of 3.5 m/s², what is the velocity of the ball?

• 2.4 m/s

• 3.6 m/s

• 3.9 m/s

• 4.2 m/s

Tags

NGSS.HS-PS2-1