North+Mesquite

toc __Circular Motion__ - movement of an object at constant around a circle with fixed radius
Axis - straight line around which rotation takes place Rotation - object turns around an internal axis Revolution - revolves around something in circles Linear Speed - distance/time Tangential Speed - speed along a circular path (v=rw) Rotational Speed - number of rotations per unit of time Centripital Force - force that causes an object to follow a circular path (Fnet=mv2/r Centripital Acceleration - always points toward the center of the circular motion (d=c=2[pi]r=[pi]d)

Newton and Gravity - Isaac Newton believed that gravitational force were responsible for the acceleration of objects
Newton reasoned that if the common projected the common ball with exactly the right velocity Newton concluded that any two objects in the Universe exert on each other gravitational attraction Newton Law of Universal Gravitational applies to ALL objects

**Other Formulas** - Ac=v2/r
X = ½ at² + vt + x Universal Gravitational - Fgav = Gm1m2/d2 Q=charge (C) d=Distance(m) 9.0*10*9N.M2/c2

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