Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
34 Cards in this Set
- Front
- Back
What is red shift?
|
light moves away from us
|
|
What is blue shift?
|
light moves to us
|
|
What does the universe consist of?
|
all space, matter, and energy that exists - now, in the past, or in the future
|
|
What are the three types of galaxy?
|
spiral
elliptical irregular |
|
What is a spiral galaxy?
|
spiral arms that are made of gas, dust, and stars
|
|
What is an elliptical galaxy?
|
has little gas or dust, and has a round shape
|
|
What is an irregular galaxy?
|
does not have any particular shape
|
|
What type of galaxy is the milky way?
|
spiral galaxy
|
|
What do astronomers think is located in the center of the milky way?
|
black hole
|
|
what is interstellar matter?
|
the gas and dust located between the stars in a galaxy
|
|
What is a cluster?
|
compact cluster of galaxies
|
|
What cluster does the milky way belong to?
|
Local group
Virgo Super Cluster |
|
Which other galaxy belongs in the local group?
|
Andromeda galaxy
|
|
What two things is the force of gravity affected by?
|
mass + distance
|
|
Which 2 planets do not have a moon?
|
mercury & venus
|
|
How many total moons are present in the solar system?
|
more than 135 moons
|
|
What is Pluto's new classification?
|
dwarf planet
|
|
What is Saturn's ring made up of?
|
dust, rock, ice
|
|
What gas gives planets a blueish color?
|
methane
|
|
planet whose four largest moons were discovered by galileo
|
jupiter
|
|
contains the great red spot
|
mars
|
|
has almost no atmosphere and no water
|
mercury
|
|
discovered by herschel
|
uranus
|
|
largest planet
|
jupiter
|
|
planet with the most extreme seasons
|
uranus
|
|
planet with the most extensive ring system
|
saturn
|
|
was observed by viking 1 and viking 2
|
mars
|
|
planet discovered by galle
|
neptune
|
|
bluish planted tilted on a 98 degree angle
|
uranus
|
|
has many moons including ganymede, callisto, io, and europa
|
jupiter
|
|
called the morning star or evening star
|
venus
|
|
has 2 moons (phobos and deimon)
|
mars
|
|
spins in an opposite direction than the other planets
|
venus
|
|
contains olympus mons
|
mars
|