Uniform Circular Motion

uniform circular motion

Objects moving in a circle with constant speed (acceleration results in a change of direction) but no change in speed

tangent

Constant velocity is _____ to the path

force

Constant ______ is towards the center

Centripetal force

Any force that causes an object to move in a circular path

straight

When central forces are removed the object continues in a_____ line

centripetal acceleration

acceleration toward the center of a curved or circular path

net

a body accelerates only in the presence of a ______ force

free body diagram

a diagram showing all the forces acting on an object

tension

force on a rope will put equal force at all points along that rope

weight

_____ is always directed towards the center or the earth

periodic motion

any motion that repeats at regular time intervals

Increases

the danger of breaking traction on a curve increases if the speed of the moving object ______

decreases

the danger of breaking traction on a curve increases if radius (sharper turn) of the curve ________

excessive

the danger of breaking traction on a curve increases if there is ______ wear (how used the rubber is) on the tires.

wetness

the danger of breaking traction on a curve increases if the _____ of the road increases

reduction

the danger of breaking traction on a curve increases if there has been ____ of the banking in the curve of the road

period

the time of one oscillation

frequency

In any periodic motion, the number of complete oscillations measured in hertz.

newton

A unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second

force in nature

A push or a pull

inversely

the centripetal force on an object is ____ proportional to the radius of path of the object

directly

the centripetal acceleration of an object in circular motion is ______ proportional to the velocity of the object squared