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Galaxy
Scientific Notation
Vocabulary #1
Vocabulary #2
Normal Q and A
100
what is a spiral galaxy?
a galaxy that appears to have a bulge in the middle and arms that spiral outwards.
100
2.7 x 10 to the power of 15
270 000 000 000 000
100
what is gravity?
the force that attracts all objects towards eachother
100
what is parallax?
the aparent change in position of an object when you look at it from different places.
100
What keeps the earth rotating around the sun and the moon rotating around earth?
gravity and inertia combined
200
what is the elliptical galaxy?
a galaxy that looks like a round or flattened ball
200
simplify 456 000 000
4.56 x 10 to the power of 9
200
what is a planet?
is an objects that orbits a star and is large enough to become rounded by its own gravity
200
what is the solar system?
contains a star and the planets and other objects revolve around the star.
200
which of newtons law did we discuss?
Law of Universal Gravitation
300
what is an irregular galaxy
a galaxy that doesnt have a regular shape
300
what is a star?
a giant ball of gas primarly hydrogen and helium which undergoes nuclear fusion
300
what is a light year?
it is the distance that light travels in one year.
300
what does newtons law state?
it states that every object in the universe attracts every other object.
400
what is the universe?
all of space and everything in it.
400
what is a binary star?
star systems that have two stars and also is called double stars.
500
what is scientific notation?
uses powers of ten to write very large or very small numbers in shorter form.
500
what is a galaxy?
a huge group of single star systems, star cluster, dust, and gas bound together by gravity.