WorksheetsCumulative Quiz: The Universe 11/22
Total questions: 21
Worksheet time: 19mins
What is a comet composed of?
Ice, rock, and dust
Gas and dust
Metal and rock
Water and gas
A galaxy with an oval or round shape is known as a (a) galaxy.
Spiral
Irregular
Elliptical
Identify the galaxy type: These galaxies have an odd shape and consist of both older and younger stars.
A) Elliptical
B) Spiral
C) Irregular
Which galaxy type consists mostly of older stars?
Spiral
Elliptical
Irregular
Which type of galaxy is ESO 325-G004 an example of?
Elliptical
Spiral
Irregular
Identify the galaxy type: These galaxies have spiral arms and consist mostly of younger stars.
A) Elliptical
B) Spiral
C) Irregular
The shape of Galaxy 2 is (a) .
Spiral
Elliptical
In the process of (a) , hydrogen is converted into helium in a star’s core.
Nuclear fission
Nuclear fusion
Combustion
Evaporation
A star is a hot ball of (a) where the density and temperature are great enough to cause nuclear fusion.
Gas
Liquid
Solid
Plasma
How does a star produce light and heat?
Through nuclear fusion in its core
By burning gases on its surface
Through chemical reactions
By reflecting light from other stars
A star's brightness is also referred to as (a) . A) Temperature B) Luminosity C) Distance D) Color.
Temperature
Luminosity
Distance
Color
Match the following spectral classes with their surface temperatures: 1) A 2) B 3) O 4) M.
Less than 3,500 °K
B
7,500–10,000 °K
D
More than 30,000 °K
C
10,000–30,000 °K
A
A star's color is determined by its (a) . A) Luminosity B) Surface temperature C) Distance from Earth D) Age.
Luminosity
Surface temperature
Distance from Earth
Age
Which color corresponds to a spectral class with a surface temperature of 5,000–6,000 °K?
Red
Yellow
Blue
White
Stars are not (a) things, but they still have life cycles.
living
dead
static
moving
Match the following
comet
icy body that releases gas as it orbits
asteroid
rocky body that orbits the sun
meteor
lights up when it enters the atmosphere
meteoroid
rocky fragment of an asteroid
meteorite
meteor fragment that reaches the ground
Match the following components to their right description
Nebula
cloud of gas, birthplace of stars
Universe
all existing matter in space
Galaxy
billions of stars, gas, & dust together
Stars
large ball of burning gas
Match the following
spherical
elliptical galaxy
no shape
irregular galaxy
bulge in center with extending arms
spiral galaxy
Match the correct universe theory to its name.
the universe began as a single point that exploded and continues to expand
Big Bang Theory
The universe switches back and forth from expanding and contracting, endlessly repeating. It does not “end”.
Oscillating Theory
The universe has no beginning and no end. It expands, but more matter is continually created to keep the density the same over time.
Steady-State theory
is not a scientific theory in the traditional sense, but a belief that the universe and life are the product of an intelligent designer rather than random processes like evolution or natural selection.
Intelligent design
A thick disk of icy bodies, rocks, and dwarf planets beyond the orbit of Neptune
Hypothesized to be made from material leftover from the formation of the solar system
Believed to be a source of comets
(a)
Theorized to be a huge, icy cloud that surrounds the planets, sun, and objects in the Kuiper belt
Believed to be a source of comets
Predicted to be the most distant region of Earth’s solar system
(a)
