Chapter 17 Vocabulary Test Question Preview (ID: 46967)


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A telescope that uses convex lenses to gather and focus light
a) Refracting telescope
b) Reflecting telescope
c) radio telescope
d) response telescope

An imaginary pattern of stars in the sky
a) Milky way
b) Constellation
c) Spiral galaxy
d) elliptical galaxy

The brightness of a star if it were at a standard distance from Earth
a) Abstract brightness
b) Apparent brightness
c) Absolute brightness
d) Complete brightness

A graph relating the surface temperatures and absolute brightness of stars.
a) HB diagram
b) HS diagram
c) HC daigram
d) HR diagram

A large cloud of gas and dust in space, spread out in an immense volume
a) Nebula
b) Solar nebula
c) Lunar nebula
d) Full nebula

The initial explosion that resulted in the formation and expansion of the universe
a) Big Explosion
b) Big Bang
c) Solar Bang
d) Universal Band

A galaxy with a bulge in the middle and arms that spiral outward in a pinwheel patter
a) Elliptical Galaxy
b) Irregular Galaxy
c) Spiral Galaxy
d) Heliocentric Galaxy

A galaxy shaped like a round or flattened ball, generally ball, generally containing only old stars
a) Irregular Galaxy
b) Spiral Galaxy
c) Heliocentric Galaxy
d) Elliptical Galaxy

A large, round, densely-packed grouping of older stars
a) Globular Clusters
b) Open Clusters
c) Old Clusters
d) Bright Clusters

One of the small asteroid-like bodies that formed the building blocks of the planets
a) Comets
b) Planetesimals
c) Asteroid Belt
d) Open Clusters

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