The BBT
The Big Bang Theory is a _________ _______, which is a well supported explanation for a natural phenomenon.
scientific theory
The central point of mass between two objects around which both revolve. Closer to the object of greater mass.
barycenter
Occurs when the moon moves directly in between the earth and the sun
Solar Eclipse
Full cycle is 24 hours. Gives us day and night.
Rotation
The weaker of the two tides, in which the sun and moon are at right angles, working against one another.
Neap Tides
The proposed age of the entire universe.
13 to 15 billion years old
The Sun
Occurs when the moon sits behind the earth, and in its shadow
Lunar Eclipse
The reorientation of the Earth's axis (the direction it points), or wobble. Full cycle takes 26,000 years.
Precession
What are the tides caused by?
Gravity of Moon and the Sun
Smaller than a galaxy but larger than individual planets, stars, and asteroids.
Solar System
The largest object is:
The galaxy
True/False:
The moon orbits the earth in a clockwise motion.
False
The orbits of planets are ellipses, and not perfect circles
Kepler's 1st Law
Which two moon phases indicate Spring Tides?
New and Full Moons
the point at which a planet is closest to the sun
Perihelion
In the Earth-Moon system, the barycenter is located:
Inside of the Earth
The area of the earth that will receive a partial eclipse
Penumbra
Objects will move faster in orbit while at their perihelion than at their aphelion
Kepler's 2nd Law
The periodic rise and fall of the sea level
tides
the point at which a planet is furthest away from the sun
Aphelion
The exact tilt of the Earth's axis is
23.5
The area of the earth that will receive a total eclipse
Umbra
Objects that are further from the sun take longer to complete their orbit
Kepler's 3rd Law
The path an object takes around a larger object
orbit