Quiz 13 - Sect. 4.1 - 4.2 Flashcards
1
Q
a large cloud of gas and dust floating in space
A
nebula
2
Q
the force that resists motion
A
friction
3
Q
three basic galactic shapes
A
spiral, elliptical, irregular
4
Q
the galaxy we live in
A
the Milky Way
5
Q
An area containing no air or any other matter is called what?
A
vacuum
6
Q
What type of galaxy resembles an egg or a football
A
spiral galaxy
7
Q
A star system containing from millions to billions of stars
A
galaxy
8
Q
Scientists who study outer space
A
astronomers
