Vocabulary
The force of attraction between objects that is due to their masses and the distances between them.
What is Gravity
These were formed in the outer orbit of the Protostellar Disk.
What is Gas Giants
Gravity keeps the planets in orbit around the Sun.
What is True
proposed a heliocentric model of the solar system; attempted to measure the relative distances to the moon and sun.
What is Aristarachus
Archaic astronomy, it is not a scientific study.
Using the positions and relationships of the sun, moon, stars, and planets in order to judge their influence on human actions - pseudoscience
What is Astrology
What is Aphelion
The planets follow circular paths around the Sun
What is False
Improved the telescope; gave us the approach to solving problems we know as the "scientific method".
What is Galileo Galilei
Massive planets that formed in the outer disk with rocky or metallic cores and deep atmospheres of gas and ice
What is Gas Giants
This caused the sun to form.
What is friction fell into matter causing the center to be heated up to millions of degrees.
Sir Isaac Newton was the first scientist to describe how the force of gravity behaved.
What is true
astronomer who developed a detailed geocentric model of the solar system "wheels-on-wheels" model that was used by astronomers for the next 14 centuries
What is Ptolemy
A cloud of dust and gas that collapsed and formed the solar system.
What is the Solar Nebula
What is dust grains.
The sun formed in the center of the solar system
What is true
realized that planetary motions were not perfect circles; he developed three laws that helped explain planetary orbits
What is Kepler
The apparent shift in the position of an object when viewed from different locations
What is parallax
What is the solar system made up of
What is meteroids, terrestial planets, gas giants, stars
The terrestrial planets and the gas giant planets formed from the same material
What is false
Greek philosopher who thought the Earth was the center of all things (geocentric model); described parallax.
What is Artistole