1.
What type of Galaxy is this?
Correct Answer
B. Irregular galaxy
Explanation
An irregular galaxy is a type of galaxy that does not have a distinct shape or structure. It lacks the symmetrical arms and central bulge that are characteristic of other types of galaxies. Irregular galaxies are often smaller and less massive than other types, and they typically contain large amounts of gas and dust. They are believed to be the result of interactions or disturbances caused by gravitational forces from nearby galaxies. The irregular shape of this galaxy suggests that it does not fit into any other defined category, making "Irregular galaxy" the correct answer.
2.
What type of galaxy is this?
Correct Answer
barred spiral galaxy
barred spiral
Explanation
Make sure that you have spelled it correctly
3.
IF you look outside at night to see a galaxy it is
Correct Answer
B. Very hard because they look like stars
Explanation
It is very hard to see a galaxy at night because they look like stars. Galaxies are massive collections of stars, gas, and dust, and they are located far away from Earth. Due to their vast distance, galaxies appear as small points of light that can easily be mistaken for individual stars. This makes it challenging to distinguish galaxies from the countless other stars in the night sky, making it difficult to identify them without the aid of telescopes or specialized equipment.
4.
A galaxy that looks like an egg is called a/an
Correct Answer
C. Elliptical galaxy
Explanation
An elliptical galaxy is a type of galaxy that has an oval or egg-like shape. It is characterized by a smooth and featureless appearance, lacking the distinct spiral arms seen in spiral galaxies. The stars in an elliptical galaxy are arranged in a more random and elliptical distribution. This shape is often attributed to the merger of multiple smaller galaxies, resulting in a more rounded and elongated structure. Therefore, an elliptical galaxy is the correct answer for a galaxy that looks like an egg.
5.
A galaxy that has no defined shape is called
Correct Answer
C. An irregular galaxy
Explanation
An irregular galaxy is a galaxy that does not have a defined shape. Unlike spiral or elliptical galaxies, irregular galaxies lack the typical symmetrical structure and do not follow any specific pattern. They often have a chaotic appearance, with a mix of stars, gas, and dust spread out in a disorganized manner. Irregular galaxies can vary in size and may have ongoing star formation activity.
6.
This is a picture of
Correct Answer
C. An elliptical galaxy
Explanation
This picture depicts an elliptical galaxy. Elliptical galaxies are characterized by their smooth and elongated shape, resembling an ellipse. They are composed mostly of older stars and contain very little gas and dust, which results in a lack of ongoing star formation. The absence of prominent spiral arms or irregular features in the image suggests that it is an elliptical galaxy.
7.
What is this a picture of?
Correct Answer
B. A spiral galaxy
Explanation
This picture is most likely a spiral galaxy because it shows a distinct spiral structure with arms extending from a central bulge. Spiral galaxies are characterized by their flattened disk shape and the presence of spiral arms, which contain young stars, gas, and dust. This image matches the typical appearance of a spiral galaxy, suggesting that it is the correct answer.
8.
What galaxy has arms and a center bulge?
Correct Answer
C. A barred spiral galaxy
Explanation
A barred spiral galaxy is the correct answer because it is a type of galaxy that has distinct arms and a central bulge. Unlike regular spiral galaxies, which have arms that extend directly from the center, barred spiral galaxies have a bar-shaped structure in the center from which the arms originate. This bar is formed by the concentration of stars and dust, and it helps to fuel star formation in the arms. The arms of a barred spiral galaxy can be tightly wound or more loosely defined, but they are always present along with the central bulge.
9.
Our galaxy's shape is called a _________________ galaxy
Correct Answer
D. Spiral
Explanation
The correct answer is spiral because our galaxy, the Milky Way, has a spiral shape. Spiral galaxies are characterized by their rotating disk-like structure, with arms that extend outwards from a central bulge. The stars, gas, and dust in a spiral galaxy are organized in these spiral arms, giving it its distinctive appearance.
10.
What is the correct order of the objects from smallest to largest?
Correct Answer
C. Solar system. galaxy, universe
Explanation
The correct order of the objects from smallest to largest is solar system, galaxy, universe. The solar system refers to the sun and all the objects that orbit around it, such as planets, moons, asteroids, and comets. A galaxy is a large system of stars, gas, and dust held together by gravity, with billions of stars and other celestial objects. The universe is the entirety of space, time, matter, and energy, including all galaxies and their contents.
11.
There are about how many galaxies in the universe?
Correct Answer
D. Billions
Explanation
The answer "billions" suggests that there are a large number of galaxies in the universe. This aligns with current scientific understanding, as astronomers estimate that there are billions of galaxies in the observable universe. Galaxies are vast collections of stars, gas, and dust held together by gravity, and they come in various shapes and sizes. The immense number of galaxies in the universe highlights the vastness and complexity of our cosmic surroundings.
12.
There are about how many stars in a galaxy?
Correct Answer
D. Billions
Explanation
Galaxies are vast systems that contain billions of stars. The sheer size and scale of galaxies make it possible for them to host such a large number of stars. The answer "billions" accurately reflects the astronomical estimate of the number of stars typically found in a galaxy.
13.
Have we ever taken a picture of the whole Milky Way galaxy?
Correct Answer
B. No, and probably not for a very long time
Explanation
Taking a picture of the whole Milky Way galaxy is a challenging task due to its immense size and our position within it. The Milky Way is a spiral galaxy with a diameter of about 100,000 light-years, and we are located within one of its spiral arms. Therefore, it is difficult to capture an image of the entire galaxy from our vantage point. Additionally, the technology and capabilities required to photograph the entire galaxy accurately may not be available currently. Hence, it is unlikely that we will be able to take a picture of the whole Milky Way galaxy in the near future.
14.
What are galaxies catagorized by?
Correct Answer
B. Shape
Explanation
Galaxies are categorized by their shape. Different galaxies have distinct shapes such as spiral, elliptical, or irregular. This classification is based on the overall structure and arrangement of stars, gas, and dust within the galaxy. By studying the shape of galaxies, astronomers can gain insights into their formation and evolution processes.
15.
Galaxies gather in groups called _____________________________?
Correct Answer
cluster
clusters
Explanation
Galaxies gather in groups called clusters, which are large collections of galaxies bound together by gravity. These clusters can contain anywhere from a few dozen to thousands of galaxies. They are important structures in the universe as they provide insights into the formation and evolution of galaxies. Clusters are also where many interactions and mergers between galaxies occur, shaping their morphology and influencing their properties.
16.
Our galaxy is one of about 30 galaxies that make a small cluster called the _____________ ___________________.
Correct Answer
Local group
Explanation
Our galaxy is just one of many galaxies in the universe. It belongs to a small cluster known as the Local Group, which consists of approximately 30 galaxies. This cluster is relatively close to us in terms of cosmic distances and includes notable galaxies such as the Andromeda Galaxy and the Triangulum Galaxy. The Local Group is an important structure in the study of cosmology and provides valuable insights into the formation and evolution of galaxies.
17.
Larger groups of galaxies that can measure more than 100 million light years across are called what?
Correct Answer
super cluster
super clusters
superclusters
supercluster
Explanation
Larger groups of galaxies that measure more than 100 million light years across are referred to as superclusters. The term "super cluster" is used to describe a single larger group, while "super clusters," "superclusters," and "supercluster" are variations of the plural form of the term.
18.
Name the only three spiral galaxies in our cluster of galaxies
Correct Answer
B. Andromedia Galaxy, Milky Way Galaxy, Triangulum Galaxy
Explanation
The correct answer is Andromeda Galaxy, Milky Way Galaxy, Triangulum Galaxy. These three galaxies are spiral galaxies that are part of our cluster of galaxies. The Andromeda Galaxy is the closest spiral galaxy to the Milky Way, and the Triangulum Galaxy is another nearby spiral galaxy. The Milky Way Galaxy is our own galaxy, which is also a spiral galaxy.
19.
Galaxies are enormous groups of stars held together by _______________
Correct Answer
gravity
Explanation
Galaxies are formed by the gravitational force, which is the attraction between objects with mass. This force pulls the stars together and holds them in a cohesive structure. Without gravity, the stars within a galaxy would not be bound together and would drift apart. Therefore, gravity is the fundamental force that keeps galaxies intact.
20.
Galaxies begin as huge masses of ?
Correct Answer
Gas
Explanation
Galaxies begin as huge masses of gas. This gas is primarily composed of hydrogen and helium, which are the two most abundant elements in the universe. Over time, gravity causes these gas clouds to collapse and form dense regions. As these regions become denser, they heat up and eventually ignite nuclear fusion, giving birth to stars. These stars, along with other celestial objects, form the structure of a galaxy. Therefore, gas is the starting material for the formation of galaxies.
21.
Upload your response
22.
Please fill answer below_______
Correct Answer
N/A