Under the influence of gravity, over time the dense central part of a galaxy will do what?(1 point)
expand
expand
stay the same size but spin more slowly
stay the same size but spin more slowly
contract
contract
stay as it is, forces balanced
stay as it is, forces balanced
contract
Under the influence of gravity, over time the dense central part of a galaxy will contract.
Under the influence of gravity, over time, the dense central part of a galaxy will contract. To understand why this happens, let's delve into the concept of gravity and its effects on astronomical objects like galaxies.
Gravity is the force of attraction that exists between any two objects with mass. In the case of galaxies, gravity plays a significant role in their formation and evolution. A galaxy consists of millions or billions of stars held together by gravity.
As these stars interact with each other over time, their gravitational pull affects the overall dynamics of the galaxy. Specifically, the dense central part of a galaxy experiences a stronger gravitational force due to the accumulation of mass in that region. This gravitational force causes the stars in the central part to be pulled inward, leading to a contraction.
So, the correct answer to the question is "contract."
To recap, the dense central part of a galaxy contracts under the influence of gravity as the gravitational force causes the stars in that region to be pulled inward.