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Gravitational Field Strength

gravitational force per unit mass experienced by a mass placed at that point

Newton's Law of Gravitation

Every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

Universal Gravitational Constant

F=g(m1m2/r^2) G = 6.67 E-11 N m² / kg²

Rotational Motion

Forces applied to an object cause the object to rotate around a fixed point (fulcrum)

Torque

A "force" that causes rotation because it is exerted at a distance from the axis of rotation.

tangential speed

The speed of an object moving along a circular path.

Fc=mv^2/r

formula for centripetal force

Ac=v^2/r

formula for centripetal acceleraton

Gm1m2 divided by r^2

formula for newton's law of universal gravitaton

Field Force

A force exerted on an object without touching it

T=1/F

formula for period

f=1/T

formula for frequency

formula for efficiency

output work / input work X 100%