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Rm 110

Formation of the Solar System, Tides, Rotation, Orbits, and Seasons

QuestionAnswer
solar system Sun, Earth, and the other planets and objects that orbit the sun
nebular theory how scientist think the solar system formed
4.6 billon years ago when the solar system formed
nebula rotating cloud of gas and dust left over from an exploded star
gravity force that caused the solar system to form
accretion the process that caused pieces to clump together due to gravity forming the solar system
gravity the force of attraction that occurs between masses and draws objects towards each other
gravitational strength controlled by the mass of each object and distance between them
inner planets Mercury, Venus, Earth, Mars
outer planets Jupiter, Saturn, Uranus, Neptune
terrestrial planets Earth-like or rocky planets; refers to inner planets
Jovian planets Jupiter-like or gas giants; refers to outer planets
tides when the gravitational forces between the Moon and Sun cause the sea level to rise in certain areas of Earth's surface
tidal bulge when water in the ocean basin sloshes toward the Moon's gravitational pull. The water on the opposite side of the Earth from the Moon also bulges, although to a lesser extent.
lower Gravity from the Sun is _______________ than gravity from the moon because the Earth is much farther from the Sun.
Moon Primary cause of Earth's high and low tides
Spring Tides occur when the Earth, Moon, and Sun are aligned; the gravity from the Moon and Sun combine to make high tides higher than normal and low tides to be lower than normal
Neap Tides occur when the Moon, Earth, and Sun form a right angle; the gravity of the Sun and the Moon counteract one another causing high tides to be lower than normal and low tides to be higher than normal
rotation spinning
revolution orbit; to travel around another object
axis imaginary pole that runs through the Earth's center from the North Pole to the South pole
solar day 24 hour
winter Earth is tilted on its axis away from the sun; days are shorter and nights are longer
summer Earth is tilted on its axis towards the sun; days are longer and nights are shorter
365.26 days time for the Earth to completely orbit the Sun
Leap year how we account for have a 365 day year when the actual orbit of the Earth is 365.26 days
summer solstice longest day of the year
winter solstice shortest day of the year
latitude distance from the Earth's equator; determines how extreme seasonal differences are
Created by: ledee.workman
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