Honors Earth/Environmental Science: Astronomy Test 2 Vocabulary – Flashcards
Unlock all answers in this set
Unlock answersquestion
ellipse
answer
a round object that is not a circle
question
foci
answer
two focus points in an ellipse
question
law of ellipse
answer
kelpers first law
question
law of equal areas
answer
keplers second law
question
law of harmonies
answer
kelpers third law
question
law of ellipse
answer
the orbital paths of the planets are not circular with the sun at one focus
question
law of equal areas
answer
planets move faster when closer to the sun and slower further away from the sun
question
law of harmonies
answer
the farther a planet is away from the sun, the greater its orbital period
question
Tycho Brahe
answer
Keplers mentor
question
inertia
answer
the tendency of an object to keep moving at the same speed and in the same direction unless acted on by a force
question
law of universal gravitation
answer
the greater the mass of the object the greater the gravitational force will be
question
weight
answer
the force of gravity acting upon an object
question
proportional
answer
to compare
question
inverse
answer
opposite
question
gravity
answer
any object having mass always exerts an attractive gravitational force on all other massive objects
question
direct proportion
answer
the more massive the object, the stronger its gravitational pull
question
inverse proportion
answer
the longer the distance two objects are from each other, the shorter the gravitational attraction
question
365 Days
answer
how long it takes for the death to revolve around the sun
question
barycenter
answer
the balance between the masses of the planets as they orbit
question
perihelion
answer
the point at which an orbiting planet is closest to the sun
question
aphelion
answer
the point at which an orbiting planet is farthest away from the sun
question
precesion
answer
The slow top-like wobbling of the spinning of the earth
question
revolution
answer
The motion of a body, such as a planet or moon, along a path around some point in space.
question
rotation
answer
The turning, or spinning, of a body on its axis
