Fall Semester Review IV Question Preview (ID: 40147)
8th Semester Review 2017-2018.
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Group 9 and row 6
a) chromium
b) tungsten
c) cobalt
d) iridium
Which of the following describes a star?
a) a collection of gases from several nebulae hot enough to cause a nuclear reaction.
b) a collection of hot gases that forms a sphere but produces no light
c) A sphere of dust and gases that contain many elements and produces light from fusion and fission reactions
d) A sphere of matter with a density and temperature great enough to cause a nuclear reaction in its center
Velocity..
a) speed with direction
b) speed with distance
c) speed with time
d) distance and tine
Potential energy
a) energy of static cling
b) energy of motion
c) stored energy
d) energy of explosions
Kinetic energy
a) energy of static cling
b) energy of motion
c) stored energy
d) energy of explosion
Time between each season
a) one month
b) three months
c) 6 months
d) 9 months
Life time of a star depends on..
a) brightness
b) distance
c) mass
d) gas and dust
Reason for why we have seasons...
a) rotation and light intensity
b) distance and time
c) tilt and distance
d) tilt and revolution
Period 2 and valence 6...
a) sulfur
b) oxygen
c) lithium
d) zinc
Rotation
a) 365 days
b) one year
c) 24hr
d) 2 weeks
Revolution.
a) seasons
b) day and night
c) supernova
d) one year
Revolution
a) one year
b) 600 days
c) 24 hr
d) 2 weeks
Justin and Ruby are looking at stars on a dark night and notice that two stars next to each other are equally bright, but one is red and one is blue. Which of the following best explains why the stars are different colors?
a) the stars have different numbers of planets orbiting them
b) the stars are different distances away
c) the stars are different temperatures
d) the stars are in different galaxies
Rotation
a) seasons
b) day and night
c) supernova
d) one year
The Van Maanen's Star is 14 light years away. If the light from this star is observed in 2013, the light was most likely emitted...
a) 1999
b) 2012
c) 2013
d) 2027
HR Diagram
a) compares blue stars with supernovas
b) compares brightness and temperature
c) compares main sequence with the sun
d) compares luminosity and the sun
Light years..
a) distance light travels around the Sun
b) distance light travels through matter
c) distance light travels in one Earth day
d) distance light travels in one Earth year
Nursery for stars...
a) main sequence
b) protostar
c) nebulae
d) supernova
Period 4 group 4
a) titanium
b) germanium
c) bromine
d) potassium
2 circles and 5 valence
a) vanadium
b) cadium
c) nitrogen
d) chlorine
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