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Newtons law of universal gravitation
states that every object attracts every other object with a force that for any two objects is directly proportional to the mass of each object
f= m1m2/d^2
Newtons law of universal gravitation equation
Universal Gravitational Constant
F=g(m1m2/r^2) G = 6.67 E-11 N m² / kg²
F= G m1m2/d^2
universal gravitational constant
g
(a) Abbreviation for gram. (b) When a lowercase italic g, the symbol for the acceleration due to gravity (at Earth's surface, 9…
gravity
(physics) the force of attraction between all masses in the universe
weight is less
when distance from the center of the earth is greater
weight
A force that comes from gravity pulling down on any object with mass
mass of earth
6x 10^24 Kilograms
inverse square law
a quantity varies with the inverse square of its distance from its source
the less an object will weigh
the greater the distance from earths center
Perturbation
Deviation of and orbiting object from its path around center of force caused by another center of force
deviation
planets pull each other
force field
a magnetic field, that surrounds a magnet
Gravitational field
a force field that exists in the space around every mass or group of masses
g =F/m
gravitational field equation
G=
6.67E
earths G
6.67 x 10^-11N-M^2/KG^2
earths M
5.98 x10^24 kg
earths R
6.37 x 10^6m
causes acceleration
force of gravity
still floor
normal weight
greater weight
floor accelerating up
less weight
floor accelerating down
fall freely
no weight
weightless
lack of support force
high tide
ocean nearest moon
low tide
ocean farthest from moon
a torque exists
when the moons long axis is not aligned with earths gravitational field
Spring tides
Tides that occur when the Sun, Earth, and Moon are all lined; High tides are higher than average and low tides are lower than average
solar eclipse
is produced when the moon is directly between the sun and Earth