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7th-8th Grade Ch. 3 Science Test (Stars), Part 2
Test Description: 7th-8th Grade Ch. 3 Science Test (Stars), Part 2
Instructions: Answer all questions to get your test result.
1) Which of the following is not referred to when finding a star's location using celestial coordinates?
A
declination
B
celestial equator
C
right ascension
D
gnomon
2) A type of telescope mount that allows the viewer to follow a star with only one telescope motion is the
A
Dobsonian mount.
B
polar mount.
C
altazimuth mount.
D
equatorial mount.
3) This is also known as celestial latitude.
A
alpha
B
declination
C
Andromeda
D
magnitude
4) This is a large mass of dust and gases in space..
A
nova
B
nebula
C
pulsar
D
parallax
5) This is the measure of a brightness of a star.
A
alpha
B
magnitude
C
proper motion
D
nebula
6) This is the galaxy that contains the earth's sun.
A
Andromeda
B
pulsar
C
alpha
D
Milky Way
7) This is a star's real movement across the sky (perpendicular to the line of sight).
A
right ascension
B
proper motion
C
radial motion
D
parallax
8) This is star movement directly toward or away from the observer (parallel to the line of sight).
A
proper motion
B
declination
C
radial motion
D
parallax
9) This is a spinning neutron star that gives out strong, rapidly changing radio signals.
A
nebula
B
pulsar
C
parallax
D
nova
10) This is a star that sometimes increases many magnitudes in brilliance for a period of time, then returns to its normal brihgtness.
A
nova
B
supernova
C
nebula
D
pulsar
11) Astronomers determine a star's red shift in order to determine its temperature.
A
False.
B
True.
12) The star with the greatest apparent magnitude is the sun.
A
True.
B
False.
13) The human eye is more sensitive to light than the best CCD camera.
A
False.
B
True.
14) Sir Isaac Newton discovered that white light is made up of various colors.
A
False.
B
True.
15) The first telescopes used lenses rather than mirrors to gather light.
A
True.
B
False.
16) Refractor telescopes can have greater light-gathering ability than reflectors.
A
False.
B
True.
17) Right ascension increases as one looks west of the prime hour circle.
A
False.
B
True.
18) A star with a negative magnitude is brighter than a star with a positive magnitude.
A
False.
B
True.
19) An eclipsing binary is actually two stars.
A
False.
B
True.
20) What is a stationary, pole-like device used to determine the position and motion of the sun by the shadow it casts.
A
altazimuth
B
quadrant
C
gnomon
D
meniscus mirror
*select an answer for all questions
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