circular motion conceptual

Which represents the centripetal acceleration of the ball?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

Which of the following depict the tangential speed of the blowing ball?

• A

• B

• C

• D

Centripetal force is an acceleration of an object moving in circular path whose direction is _________________________of the circular path and whose magnitude is equal to the square of the speed divided by the radius.

• towards the tangent

• towards the center

• towards the minimum point

• towards the maximum point

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

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.

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

Tags

NGSS.HS-ESS1-4

Which of the following is the unit for centripetal force?

• J
• m/s²
• kg⋅m/s
• N

The time taken for one complete circuit is called the... 

• Period
• Frequency 
• Angular velocity

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

Why does an object experiencing uniform circular motion have an acceleration?

• because it ir changing speed

• because it is changing direction

• because it is moving n a straight line

• because it has mass

The _______________________ supplies the centripetal force requirement for the car to move in a horizontal 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