Universal Gravitation
The force of nature that attracts one mass to another mass.
Gravity
What is the Universal Gravitational constant?
G= (6.67 x 10-11) Nm2/kg2
The law of universal gravitation is credited to whom?
Newton
This law states that planets follow elliptical orbits, with the Sun at one focus of the ellipse.
Law of Orbits
What are the 3 laws of Kepler?
Orbits, Areas, and, Periods
What law states that "every object in the universe attracts every other object"?
Law of Universal Gravitation
What is the Universal law of gravitation equation?
F=G ⋅ m1⋅m2/r2
How many children did Kepler have?
11
Newton's law that states that an object moves with constant speed in a straight line unless acted on by a force.
Law of Inertia
Stating that the straight line drawn from the sun to the planet sweeps equal areas at equal intervals of time.
Law of Areas
Gravity is the force objects put on each other because of their ____.
Mass
What is the formula for acceleration due to gravity?
g=GM/r2
Who is the scientist that developed 3 laws that apply to moon, planets, and satellites
Johannes Kepler
A phenomenon by which the light from distant objects is bent by the gravity of massive objects in the universe.
Gravitational Lensing
The farthest distance of earth from the sun is called ___.
Aphelion
Force of gravity is inversely proportional to ____.
Distance / R
What is the formula for centripetal force?
Fc=mv2/r
This scientist's theory of relativity makes many predictions about how massive objects affect one another.
Albert Einstein
The force acting perpendicular to a plane.
Normal reaction force
Stating that the squares of the periods of the planets are proportional to the cubes of their average distances from the sun and can be expressed.
Law of Periods
Calculate the gravitational force between two objects when they are 0.750m apart. Each object has a mass of 5.00kg.
2.96x10-9 N
What is the formula for Kepler's 3rd law?
T2/R3=4pi2/GM
This scientist proved the existance of dark matter:
Vera Rubin
The force acting on an object in curvilinear motion directed towards the axis of rotation or center of curvature.
Centripetal Force
An ellipse is drawn around two points called:
Foci