Science test 2/4

Question 1

what are some characteritics of the corona ?

Answer 1

irregular shaped
can extend for million killometers
hottest atmosphere layers

Question 2

which correctly sequences the major steps in star formation

Answer 2

nebula forms -> fusion starts -> protostar forms -> fusion begins

Question 3

a group of stars that includes the sun

Answer 3

milkyway

Question 4

a group of stars that contains very little gas or dust but many older stars

Answer 4

eliptical galaxy

Question 5

its shape is the result of gravitational pull of neighboring galaxies

Answer 5

irregular galaxy

Question 6

used to measure the distance between earth and Venus

Answer 6

astronomical unit

Question 7

the brightness of a star or other objects in space as it appears from Earth

Answer 7

apparent magnitude

Question 8

a galaxy with arms radiating from its central gulge

Answer 8

spiral galaxy

Question 9

the light emitted by a star is not related to the stars-

Answer 9

number of layers

Question 10

The Big Bang Theory states that-

Answer 10

the universe began fro one point billions of years ago

Question 11

the fact that distant galaxies and clusters are moving away from earth is one piece of evidence that supports the-

Answer 11

Big Bang theory

Question 12

the true brightness of any object in space

Answer 12

luminosity

Question 13

used to measure distance between stars

Answer 13

light year

Question 14

what happens in the core

Answer 14

fusion takes place

Question 15

how do astronomers recognize regions in the sky

Answer 15

constalations