Circular Motion Practice Quiz

The purple ball is rolling counterclockwise around a track with uniform circular motion. Which vector represents the direction of the acceleration of the ball?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

What is the direction of the net force on an upsidedown roller coaster at the top of the loop?

• Up, toward the sky

• To the right.

• To the left.

• Down, toward the ground.

Tags

NGSS.HS-PS2-1

An object with uniform circular motion, has constant _?_ but constantly changing _?_.

• speed, acceleration

• speed, direction

• acceleration, speed

• acceleration, velocity

To describe the direction of the velocity of an object in circular motion, we use the word _?_, which means 'a straight line that touches a curve at a single point.'

• forward

• towards the center

• tangent

• sine

Any force or acceleration described as "centripetal" will always point _?_.

• in the direction the object is moving

• tangential to the circle

• towards the center of the circle around which an object is moving

• towards the outer edge of the circle around which an object is moving

The unit used to label measurements of centripetal force is _?_.

• J

• m/s²

• kg⋅m/s

• N

Tags

NGSS.HS-PS2-1

The time it takes to make one complete trip around a circle is called the _?_.

• period

• frequency

• angular velocity

• rotational speed

Why is an object experiencing uniform circular motion accelerating?

• because it is changing speed

• because it is changing direction

• because it is moving in a straight line

• because it has mass

Tags

NGSS.HS-PS2-1

The centripetal force that allows this car to move in a circular direction is provided by _?_.

• friction

• centrifugal force

• normal force

• applied force

Tags

NGSS.HS-PS2-1

If you swing a bucket of water above your head, the water will move in a straight line, which keeps it in the bucket. This is because the water has _?_.

• Friction

• Centripetal Force

• Gravity

• Inertia

Tags

NGSS.HS-PS2-1