A student makes a chart about galaxies and mentions that the universe consists of many galaxies such as the Andromeda galaxy and the Milky Way galaxy.
Which statement is true about these two galaxies?
(1 point)
Responses
They both exert a strong gravitational pull on each other.
They both exert a strong gravitational pull on each other.
They are both moving away from each other.
They are both moving away from each other.
The Milky Way is a spiral galaxy, and the Andromeda galaxy is not.
The Milky Way is a spiral galaxy, and the Andromeda galaxy is not.
The Milky Way galaxy is larger than the Andromeda galaxy.
11 answers
The correct statement is:
They both exert a strong gravitational pull on each other.
The Milky Way and the Andromeda galaxies are part of the Local Group and actually have a mutual gravitational attraction, which will eventually result in them colliding and merging in about 4 billion years. The other statements are not true; they are moving towards each other, both galaxies are spiral galaxies, and the Andromeda galaxy is larger than the Milky Way galaxy.
The best statement that describes the distances between planets in the solar system is:
It has varying distances with no specific pattern.
While there is a general trend that outer planets tend to be farther from the Sun than the inner planets, the actual distances between individual planets do not follow a consistent pattern as you move outward.
The correct response is:
to better observe patterns and relationships.
Scale models allow students and scientists to visualize and understand complex natural phenomena more easily, helping them to observe patterns and relationships that may not be apparent in the actual size or scale of the phenomena.
The planet that is approximately four times larger than the diameter of Venus on a scale model is:
Neptune.
Neptune has a diameter that is roughly four times greater than that of Venus. In contrast, Earth and Mars are closer in size to Venus, and Mercury is smaller.
The correct response is:
Gravity increases with decreasing distance.
Gravity is an attractive force that decreases as the distance between two objects increases. Therefore, as the distance between two masses decreases, the gravitational force between them increases.
The correct response is:
geological time scale.
Scientists use the geological time scale to organize Earth's history, which includes the classification of geological and biological events in chronological order. While layers of rock and the fossil record are important for understanding Earth's history, the geological time scale provides the framework for organizing that information.
