Uniform circular Motion Review

A 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

Which statement is true about an object that is traveling in uniform circular motion?

• The speed of the object varies.
• The net force on the object is directed toward the center of the circular path.
• The direction of the object's velocity is constant.
• The net force on the object is directed away from the center of the circular path.

Tags

NGSS.HS-PS2-1

Centripetal acceleration always points

• in the direction of the object's motion

• in the opposite direction of the object's motion

• towards the center of the circle

• towards the outside of the circle

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

A toy car is following a circular path with a constant speed of v=3 m/s . If the radius of the circular path is 1 m, find The centripetal acceleration of the car

• 30 m/s²

• 3 m/s²

• 9 m/s²

• 6 m/s²

Tags

NGSS.HS-PS2-1

Which of the following depict the velocity of the blowing ball?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

An object traveling in a circle with constant angular velocity experiences no acceleration.

• True

• False

What happens to the centripetal force exerted on an object if you triple the velocity?

• it increases to 3X
• it decreases to 6X
• it increases to 6X
• it increases to 9X

If an object is spinning around on a string and the string was suddenly cut, the object would move in a

• curved path

• straight line

Tags

NGSS.HS-PS2-1

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

• True
• False

Tags

NGSS.HS-PS2-1