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Midterm 4 Stars
Test Description: Stars
Instructions: Answer all questions to get your test result.
1) What chracteristics are shown on the Hertzsprung Russell Diagram?
A
shape and color
B
size and age
C
distance and mass
D
temperature and luminosity
2) How would a hot star with low luminosity be classified?
A
protostar
B
double star
C
white dwarf
D
red giant
3) Who is credited with the nebular hypthesis?
A
Kepler
B
LePlace
C
Newton
D
Hertzsprung
4) What determines the lifespan of a star?
A
brightness
B
mass
C
size
D
temperature
5) What is produced when a dying giant or supergiant explodes?
A
double star
B
supernova
C
quasar
D
protostar
6) What is a rotating cloud of dust and gas that becones a star?
A
nova
B
protostar
C
planeteimal
D
nebula
7) What caused the solar nebula to condense to form the sun?
A
energy from collisions and pressure from density
B
rotation and revolution
C
enegy and heat from fusion
D
energy from high temperatures and pressure from gravity
8) What is produced in all phases of fusion in a star's core?
A
hydrogen
B
neutrons
C
protons
D
energy
9) What do all stars begin as?
A
nebula
B
protostars
C
planetesimals
D
black holes
10) Describe the temperature and luminosity of the sun on the Hertzsprung Russell Diagram.
A
hot and bright
B
hot and dim
C
cool and dim
D
medium temperature and medium luminosity
*select an answer for all questions
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