Which correctly relate dark matter and dark energy to the Big Bang theory? Select the two correct answers.(1 point)
Responses
Through dark energy, the universe is expanding at a faster and faster rate.
Through dark energy, the universe is expanding at a faster and faster rate.
Without dark energy, structures in the early universe would never have developed.
Without dark energy, structures in the early universe would never have developed.
Because of dark matter, gravitational interactions cause galaxies to develop.
Because of dark matter, gravitational interactions cause galaxies to develop.
Dark energy is the source of 25 percent of the mass of the universe.
The two correct answers are:
1) Through dark energy, the universe is expanding at a faster and faster rate.
2) Because of dark matter, gravitational interactions cause galaxies to develop.
The two correct answers are:
1. Through dark energy, the universe is expanding at a faster and faster rate.
2. Because of dark matter, gravitational interactions cause galaxies to develop.
The two correct answers are:
1. Through dark energy, the universe is expanding at a faster and faster rate.
2. Because of dark matter, gravitational interactions cause galaxies to develop.
To understand these relationships, we need to refer to the Big Bang theory, which states that the universe originated from a highly dense and hot state approximately 13.8 billion years ago. Let's break down the options and see how they relate:
1. Through dark energy, the universe is expanding at a faster and faster rate.
Dark energy is a hypothetical form of energy that is thought to make up about 68% of the total energy of the universe. It is responsible for the accelerated expansion of the universe. Observations have shown that the rate of expansion is increasing, indicating the presence of dark energy. Therefore, this option is correct.
2. Without dark energy, structures in the early universe would never have developed.
This option is not correct. Dark energy primarily influences the overall expansion of the universe, while the development of structures in the early universe, such as galaxies and galaxy clusters, is influenced by the gravitational interactions caused by dark matter.
3. Because of dark matter, gravitational interactions cause galaxies to develop.
Dark matter is another hypothetical component of the universe, making up about 27% of its total energy. It does not interact with light or other electromagnetic radiation, making it difficult to detect directly. However, its gravitational effects can be observed. Dark matter plays a crucial role in the formation and maintenance of galaxy structures, as its gravitational interactions provide the necessary gravitational pull to form and hold galaxy clusters together. Therefore, this option is correct.
4. Dark energy is the source of 25 percent of the mass of the universe.
This option is incorrect. Dark energy accounts for about 68% of the total energy of the universe, but it is not a source of mass in the traditional sense. Dark matter, on the other hand, contributes to about 27% of the universe's total energy and has a significant mass component.
In summary, dark energy influences the expansion rate of the universe, while dark matter contributes to the development of galaxy structures through gravitational interactions.