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Terms in this set (36)
Earth rotates at a rate of
15° per hour due to Earth's rotation.
Everything appears to rise in the_____ and set in the ______
Theory that the Earth was the center of the Universe by Ptolemy (incorrect)
Theory that the sun is the center of the Universe by Copernicus. Explained the motion of the planets. Verified that the planets orbit.
The pendulum swings in a fixed direction in space, while the Earth ROTATES under the pendulum.
The tendency of all particles of matter moving at Earth';s surface to be deflected or cured. (ROTATION) (To the right in the northern hemisphere and to the left in the southern hemisphere.)
Evidence of Earth's Revolution
-seasons change throughout the year.
-Different constellations are seen throughout the year.
is a group of stars that form a pattern.
Seasons are caused by
the tilt of the earth's axis & the revolution around the sun
when the sun reaches its highest position in the sky.
Over the course of an entire year
everyone on Earth revives the same amount of daylight.
the point directly over your head.
when the sun rises directly due east and sets directly due west. 12 hours of daylight and 12 hours of darkness.
means getting brighter. When the moon is lit on the right side.
is when less of the moon is becoming lit up. When the moon is lit on the left side (Left Lit Last)
We see the phases of the moon because
the moon revolves around Earth.
The moon is always
The moons rotation and revolution is 27.3 days, therefore
we always see the same side of the moon
How long does it take for the moon to complete its moon phases
caused primarily by the gravity of the moon and to a lesser degree the sun.
cyclic events and very predictable.
How long does a high tide occur?
approximately every 12 hours and 25 minutes
How long does a low tide occur?
approximately every 12 hours and 25 minutes.
How many high/low tides are there everyday?
2 high tides and 2 low tides
When the moon and the Sun are in line with the Earth, the gravitational pull is at its greatest causing very HIGH tides and very LOW tides. (Full moon and New moon)
When the moon and the Earth are at 90 degree angles, the gravitational pull causes very average tides. (First Quarter and Third Quarter phases)
is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer.
Every month we don't have an eclipse because
the moon's orbit is tilted 5 degrees.
Area where a total eclipse will occur
Area where a partial eclipse will occur.
When the moon passes directly between the Earth and the Sun (New Moon)
Three types of Solar Eclipses
Total, Partial, and Annular
The entire central portion of the Sun is blackened out.
Only part of the Sun is blackened out.
Only a small ring-like silver of light is seen.
When the EArth passes directly between the moon and the Sun. (Full Moon)
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