study guide for space test
Terms in this set (24)
Why does Earth have seasons?
because its axis is tilted as it revolves around the sun
The phase of the moon you see depends on...
how much of the sunlit side of the moon facces Earth
from a new moon phase to a full moon phase you see...
the light on the moon gets brighter
the position of the sun, moon, and Earth during a solar eclipse is...
1. sun 2.moon 3.earth
the position of the sun moon and earth during a lunar eclipse
1. sun 2.earth 3.moon
what is the only moon phase that occurs during a lunar eclipse?
what causes tides to happen on earth?
the moons gravity pulling on different sides on the earth
why do we always see the same side of the earth/
it rotates at the same speed as it revloves
what kind of eclipse are you more likely to see?
when do neap tides occur?
first-quarter and third-quarter phases
what are moon phases?
the different shapes of the moon you see from earth
what is the umbra?
the smallest, darkest part of the moons shadow
what is the penumbra?
the lightest and largest part of the moons shadow
are you more likely to see the umbra or penumbra during a solar eclipse?
what is a lightyear?
the distance that light travels in one year 9.5 million million years
what is parallax?
the apparent change in position of an object when you look at it from different places
what is the orbital shape of most comets?
where is the asteriod belt?
between mars and jupiter
where do meteroids come from?
comets and asteroids
what is a meteor?
A streak of light produced by a meteoroid as it burns throught the earth's atmoshphere.
what is a meteorite?
a meteoroid that does not complety burn up in the atmosphere and strikes the surface of a moon or planet.
what is a meteoroid?
A chunk of rock or dust in space.
what is a spring tide?
when the high tide is very high and the low tide is very low
what is a neap tide?
the difference between high and low tides is less