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Chapter 19.1 Review (8th)
Test Description: Stars
Instructions: Answer all questions to get your test result.
1) The brightness of a star as seen from Earth
A
absolute magnitude
B
true magnitude
C
parallel magnitude
D
apparent magnitude
2) The apparent shift in the position of an object when viewed from different locations
A
apparent position
B
parallel vision
C
star shift
D
parallax
3) The distance that light travels in one year; about 9.5 trillion kilometers/5.8 trillion miles
A
light-kilometers
B
solar day
C
light-year
D
light-mile
4) Lines that are made when certain wavelengths of light, or colors, are given off by hot gases
A
fingerprint lines
B
spectrograph lines
C
emission lines
D
continuous spectrum
5) When you look at white light through a glass prism, you see a rainbow of colors called a
A
spectrograph
B
parallax
C
spectrum
D
light-year
6) The color of a star depends on its
A
size
B
temperature
C
magnitude
D
shape
7) What color are the hottest stars?
A
red
B
blue
C
orange
D
yellow
8) What can a scientist learn about a star from its spectrum?
A
its composition and temperature
B
its size
C
its color
D
its age
9) A star’s magnitude refers to its
A
size
B
age
C
brightness
D
temperature
10) Which star is a cool star?
A
a blue star
B
a purple star
C
a white star
D
a red star
11) The actual brightness of a star is called
A
parallax
B
light-year
C
absolute magnitude
D
apparent magnitude
12) Why is it hard to see stars move?
A
They move too slow.
B
They move too fast.
C
They do not move.
D
They are too far away.
13) Astronomers use these numbers to represent dimmer stars.
A
positive
B
negative
14) Astronomers use these numbers to represent brighter stars.
A
negative
B
positive
15) What unit of measurement do astronomers use to determine distances from Earth to the stars?
A
light-year
B
mile
C
yard
D
year
*select an answer for all questions
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