Study of Astronomy
The movement of the earth around the sun in a fixed path or orbit is called
Revolution
A natural satellite of the earth is the...
Moon
Types of earth motions
Rotation & revolution
The moon takes _______ to go around the Earth.
one month
How long does it take for earth to turn from west to east and one complete rotation
24 hrs
Deals with the study of space which includes
Astronomy
Reffered to as earth's twin
Venus
Define Revolution
to move around another object
imaginary lines that run from the North pole to the South pole. ( the lines run up and down)
Longitude
Is the date when winter starts in the Northern Hemisphere.
December 21at
How long does the moon take to go around the Earth?
Approx. 1 month
How old is the universe
approximately 13.8 billion years
What causes day & night?
The earth rotating on its axis
Earth is tilted at an angle of
23.5 degrees
An imaginary line running Between the North and South pole is called
Meridian
a mixture of gas, ice and dust that contracted to form our solar system
Nebula
area between Jupiter and Mars where asteroids are mainly found
Asteroid belt
this occurs when the sun is directly above a particular location
Equinox
imaginary lines on a map that run parallel to the equator. They go across.
Latitude
a line of latitude that is found closer to the Northern Hemisphere. The sun is directly over this line during the summer.
Tropic of cancer
this is the average distance between the Earth and the Sun
Astronomical Unit
How much bigger is the sun compared to earth?
the Sun is about 109 times larger than Earth
this occurs when the Sun reaches its greatest distance north or south of the equator
Solstice
What is the difference between Earth’s rotation and Earth’s revolution?
"Rotation" refers to an object's spinning motion about its own axis. "Revolution" refers the object's orbital motion around another object.
What is the speed flight per second
Speed of light about 300,000 km per sec.