Circular Motion

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

Bentley the bat has a mass of 0.58 kg and flies at a speed of 0.8 m/s in circle of radius 0.5 m. What is his acceleration?

• 0.25 m/s²

• 1.3 m/s²

• 1.6 m/s²

• 0.74 m/s²

Tags

NGSS.HS-PS2-1

A particle P is moving in a circle with uniform speed. 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

What is the direction of the velocity at point B, if the ball is revolving clockwise?

• up
• right
• down
• left

A race car completes three laps of a circular track with a radius of 35 m in 9.0 seconds. Determine the speed of the car.

• 3.9 m/s

• 73.3 m/s

• 24.4 m/s

• 1.0 m/s

If the radius of the string is .3 meters long and the stopper makes 5 revolutions per second, what is the speed of the stopper? (Hint: C=2πr)

• 9.4 m/s
• 6.8 m/s
• 11.7 m/s
• 3.5 m/s

Tags

NGSS.HS-PS2-1

Earth pulls satellite, and satellite pulls Earth. Which of the forces is stronger?

• Earth pulling satellite

• Satellite pulling Earth

• Both the same

• Not enough information to determine

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

What happens to an object's speed as the radius decreases?

• It increases.
• It decreases.
• It remains unchanged.

Two students (A and B) are on a merry-go round (depicted). Which student has a greater centripetal acceleration?

• A

• B

• Both are equal

• Cannot be determined

Tags

NGSS.HS-PS2-1

Two students (A and B) are on a merry-go round (depicted). Which student has a greater centripetal acceleration?

• A

• B

• Both are equal

• Cannot be determined

Tags

NGSS.HS-PS2-1