Chapter 19.1 Review (8th) Question Preview (ID: 37325)
Stars.
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The brightness of a star as seen from Earth
a) absolute magnitude
b) parallel magnitude
c) apparent magnitude
d) true magnitude
The apparent shift in the position of an object when viewed from different locations
a) parallel vision
b) parallax
c) apparent position
d) star shift
The distance that light travels in one year; about 9.5 trillion kilometers/5.8 trillion miles
a) light-year
b) light-mile
c) solar day
d) light-kilometers
Lines that are made when certain wavelengths of light, or colors, are given off by hot gases
a) continuous spectrum
b) spectrograph lines
c) fingerprint lines
d) emission lines
When you look at white light through a glass prism, you see a rainbow of colors called a
a) spectrograph
b) spectrum
c) parallax
d) light-year
The color of a star depends on its
a) size
b) temperature
c) shape
d) magnitude
What color are the hottest stars?
a) red
b) yellow
c) orange
d) blue
What can a scientist learn about a star from its spectrum?
a) its color
b) its size
c) its composition and temperature
d) its age
A star’s magnitude refers to its
a) temperature
b) brightness
c) size
d) age
Which star is a cool star?
a) a red star
b) a white star
c) a blue star
d) a purple star
The actual brightness of a star is called
a) absolute magnitude
b) parallax
c) light-year
d) apparent magnitude
Why is it hard to see stars move?
a) They move too slow.
b) They move too fast.
c) They are too far away.
d) They do not move.
Astronomers use these numbers to represent dimmer stars.
a) positive
b) negative
c)
d)
Astronomers use these numbers to represent brighter stars.
a) positive
b) negative
c)
d)
What unit of measurement do astronomers use to determine distances from Earth to the stars?
a) mile
b) yard
c) light-year
d) year
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