Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Ch 25 2/2
Test Description: 2/2
Instructions: Answer all questions to get your test result.
1) A star is said to be born when
A
a red giant collapses on itself and becomes a black hole
B
a protostar reaches a temperature high enough for nuclear fusion to begin
C
a dark, cool interstellar cloud begins to contract
D
pressure within a protostar becomes so great that a supernova occurs
2) Which force is most responsible for the formation of a star
A
electromagnetic force
B
nuclear force
C
gravity
D
interstellar force
3) Massive stars terminate in a brilliant explosion called a
A
supernova
B
red giant
C
neutron star
D
protostar
4) All stars, regardless of size, eventually
A
become black holes
B
explode
C
run out of fuel and collapse
D
turn into black dwarfs
5) In the cores of extremely hot red giants, nuclear reactions convert helium to
A
lead
B
carbon
C
argon
D
hydrogen
6) When a main sequences star has exhausted the fuel in tis cores, it becomes a
A
neutron star
B
red giant
C
black hole
D
black dwarf
7) Where is our sun located in the Milky Way
A
at the tip of one of the spiral arms
B
in the galactic halo
C
at the exact center of the galactic nuclues
D
within one of the spiral arms
8) According to Hubble\'s Law, galaxies are retreating at a speed that is proportional to their
A
orientation
B
mass
C
distance
D
galactic position
9) Based on the observed red shifts in the spectral lines of distant galaxies, astonomers conclude that
A
the universe is contracting
B
Earth is at the center of the universe
C
the universe is expanding
D
the universe is smaller than once believed
10) Greater red shifts in the spectra of glaxies indicate
A
higher temperatures
B
lower temperatures
C
slower speeds
D
faster speeds
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?