!!PLEASE HELP ASAP!!
*The universe unit review practice*
Drag and drop the words into the correct locations. (2 points)
Dark |BLANK|
is the only explanation for the structures of the early universe. Clumps of it led to |BLANK| in the early universe.
Without it, the universe would
Have |BLANK|
A. Formation of galaxies B.matter
C.collapsed inward D.energy E. Remained uniform
Which correctly relate dark matter and dark energy to the Big Bang theory? Select the two correct answers (1 point)
A. Because of dark matter gravitational interactions cause galaxies to develop
B. through dark energy the universe is expanding at a faster and faster rate
C. dark energy is the source of 25% of the mass of the universe
D. without dark energy structures in the early universe would never have developed
The stars at the edges of a galaxy are rotating around the galaxy center at the same speed as the stars in the middle of the galaxy how does this provide evidence of dark matter?
A. dark matter emits light that astronomers need to see the orbital speed of the stars
B. dark matter absorbs light from outside the galaxy allowing the light of the stars in the galaxy to show the orbital speeds of the stars
C. dark matter provides the gravity that allows the stars to rotate at the same speed
D. dark matter subtracts gravity which allows the stars to rotate at the same speed
Drag and drop the words into the correct locations
Three pieces of evidence of universal expansion support the big bang theory the first piece of evidence which Edwin Hubble discovered is that ________. the use the second piece of evidence is the change in universal temperature. The temperature __________. The third piece of evidence is that cosmic microwave background radiation is found _______.
-has increased dramatically
-Has decreased dramatically
-Galaxies are moving towards each other
-Uniformly across the universe
-Galaxies are moving away from each other