Circular Motion

What is CONSTANT in uniform circular motion?

• speed

• velocity

• tangential acceleration

• tension

The change in linear speed of an object directed along the tangent to the object’s circular path is

• speed

• velocity

• tangential acceleration

• tension

Where does the force of gravity always point?

• perpendicular to a surface

• straight down

• tangent to a curve (touch it at only one point)

• along a rope/wire

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The amount of time it takes for an object to return to the same position (complete one revolution) is its

• tangential velocity

• tangential acceleration

• centripetal acceleration

• period

Where do velocity vectors always point?

• perpendicular to a surface

• straight down

• tangent to a curve (touch it at only one point)

• along a rope/wire

Acceleration directed toward the center of a circular path is

• tangential velocity

• tangential acceleration

• centripetal acceleration

• period

What affects the speed at which an object moves if it is traveling in a vertical circle?

• tension

• shape of the rod

• length of the string

• force applied to string

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Increasing the radius of a circle will ____ the object's tangential velocity

• increase

• decrease

• not affect

• cancel

An object that is speeding up as it moves in a circle has

• positive tangential acceleration

• negative tangential acceleration

• no tangential acceleration

• no centripetal acceleration

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NGSS.HS-PS2-1

An object that is moving at a constant speed as it moves in a circle has

• positive tangential acceleration

• negative tangential acceleration

• no tangential acceleration

• no centripetal acceleration