Which sentence about galaxies provides evidence of universe expansion that supports the Big Bang Theory?(1 point) Responses Galaxies are moving away from each other. Galaxies are moving away from each other. Galaxies are moving more slowly than they have in the past. Galaxies are moving more slowly than they have in the past. Galaxies are in constant motion. Galaxies are in constant motion. Galaxies are moving at different speeds and in different directions.
Galaxies are moving away from each other.
The sentence that provides evidence of universe expansion that supports the Big Bang Theory is: "Galaxies are moving away from each other."
The sentence that provides evidence of universe expansion that supports the Big Bang Theory is: "Galaxies are moving away from each other."
To understand why this sentence supports the Big Bang Theory, we need to understand the underlying concept. According to the Big Bang Theory, the universe originated from a hot and dense state about 13.8 billion years ago. Since then, it has been expanding and continues to do so.
Observations of galaxies moving away from each other are consistent with this expansion. When we observe distant galaxies, we can measure their redshift. Redshift refers to the phenomenon where light from distant objects appears shifted towards longer wavelengths, indicating the object is moving away from us. This is similar to the sound of a siren from a moving vehicle appearing to have a lower pitch as it moves away from us.
The more distant a galaxy is, the greater its redshift and corresponding motion away from us. This suggests that the universe is expanding, with all galaxies moving away from each other. Therefore, the sentence "Galaxies are moving away from each other" provides evidence for universe expansion, supporting the Big Bang Theory.
Which is evidence of universe expansion that supports the Big Bang Theory?(1 point) Responses The temperature of the universe is the same as it was at the time of the Big Bang. The temperature of the universe is the same as it was at the time of the Big Bang. The temperature of the universe has cooled and warmed repeatedly over time. The temperature of the universe has cooled and warmed repeatedly over time. The temperature of the universe has cooled over time. The temperature of the universe has cooled over time. The temperature of the universe has warmed over time.
The sentence "The temperature of the universe has cooled over time." provides evidence of universe expansion that supports the Big Bang Theory. According to the Big Bang Theory, the universe started as a hot and dense state and has been expanding and cooling over time. The fact that the temperature of the universe has cooled supports this concept of expansion.
Which provides evidence of universe expansion that supports the Big Bang Theory? Select the three correct answers.(2 points) Responses Galaxies are moving away from each other. Galaxies are moving away from each other. An enormous amount of weak cosmic background radiation has been detected in the universe. An enormous amount of weak cosmic background radiation has been detected in the universe. The temperature of the universe is increasing. The temperature of the universe is increasing. The temperature of the universe is decreasing. The temperature of the universe is decreasing. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another. The universe is undergoing a cycle of contraction and expansion.
The three sentences that provide evidence of universe expansion that supports the Big Bang Theory are:
1. Galaxies are moving away from each other.
2. An enormous amount of weak cosmic background radiation has been detected in the universe.
3. The temperature of the universe is decreasing.
These pieces of evidence align with the Big Bang Theory, which postulates that the universe originated from a hot and dense state and has been expanding since then. The observed movement of galaxies away from each other, the detection of cosmic background radiation, and the decrease in the temperature of the universe over time all support the idea of universe expansion.