1. Which is evidence of universe expansion that supports the Big Bang Theory?
A. The temperature of the universe has cooled and warmed repeatedly over time
B. The temperature of the universe is the same as it was at the time of the Big Bang
C. The temperature of the universe has cooled over time
D. The temperature of the universe has warmed over time
2. Which provided evidence of universe expansion that supports the Big Bang Theory? Select the three correct answers.
A. The temperature of the universe is increasing
B. The universe is undergoing a cycle of contraction and expansion
C. An enormous amount of weak cosmic background radiation has been detected in the universe
D. Galaxies are moving away from each other
E. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another
F. The temperature of the universe is decreasing
3. Which sentence about galaxies provide evidence of universe expansion that supports the Big Bang Theory?
A. Galaxies are moving away from each other
B. Galaxies are moving more slowly than they have in the past
C. Galaxies are moving at different speeds and in different directions
D. Galaxies are in constant motion
1. The correct answer is C. The temperature of the universe has cooled over time. One of the pieces of evidence supporting the Big Bang Theory is the idea that the universe started from a highly compact and hot state and has been expanding and cooling ever since.
2. The correct answers are C, D, and E.
C. An enormous amount of weak cosmic background radiation has been detected in the universe. This is known as the Cosmic Microwave Background (CMB) radiation, which is considered a remnant of the early stages of the universe and is consistent with the predictions of the Big Bang Theory.
D. Galaxies are moving away from each other. The observation of the redshift of galaxies, which shows that most galaxies are moving away from us and from each other, supports the idea of an expanding universe.
E. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another. The variations in the temperature of the CMB radiation across different regions of the universe provide further evidence for the Big Bang Theory.
3. The correct answer is A. Galaxies are moving away from each other. This observation, known as the Hubble's Law, shows that many galaxies in the universe are moving away from each other, indicating an expanding universe. This supports the Big Bang Theory because if the universe is expanding, it suggests that it was once much smaller and denser in the past.
A. The temperature of the universe has cooled and warmed repeatedly over time
C. An enormous amount of weak cosmic background radiation has been detected in the universe
D. Galaxies are moving away from each other
1. To determine which answer choice provides evidence of universe expansion that supports the Big Bang Theory, we can analyze the information provided in each option:
A. The temperature of the universe has cooled and warmed repeatedly over time: This statement does not specifically mention any connection to universe expansion or the Big Bang Theory.
B. The temperature of the universe is the same as it was at the time of the Big Bang: This statement contradicts the understanding that the universe has been expanding since the time of the Big Bang. Therefore, it does not support the Big Bang Theory.
C. The temperature of the universe has cooled over time: This option aligns with the understanding that as the universe expands, the temperature decreases. Cooler temperatures are indicative of universe expansion, supporting the Big Bang Theory.
D. The temperature of the universe has warmed over time: This statement contradicts the understanding that the universe has been expanding since the time of the Big Bang. Therefore, it does not support the Big Bang Theory.
Based on the analysis above, the answer choice that provides evidence of universe expansion supporting the Big Bang Theory is C. The temperature of the universe has cooled over time.
2. To determine which answer choices provide evidence of universe expansion that supports the Big Bang Theory, we can analyze the information provided in each option:
A. The temperature of the universe is increasing: This statement contradicts the understanding that as the universe expands, the temperature decreases. Therefore, it does not support the Big Bang Theory.
B. The universe is undergoing a cycle of contraction and expansion: This option describes a cyclical model of the universe, which is different from the current understanding of the Big Bang Theory. The Big Bang Theory posits that the universe underwent a single expansion event. Therefore, this option does not support the Big Bang Theory.
C. An enormous amount of weak cosmic background radiation has been detected in the universe: This option aligns with the evidence discovered by the Penzias and Wilson experiment, where they detected the Cosmic Microwave Background radiation. This radiation is considered a remnant of the early stages of the universe and provides strong evidence supporting the Big Bang Theory.
D. Galaxies are moving away from each other: This option aligns with the observation of galaxies receding from each other, also known as the Hubble's Law. The expansion of the universe is demonstrated through the movement of galaxies away from each other, supporting the Big Bang Theory.
E. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another: This statement is not directly related to the evidence of universe expansion or supporting the Big Bang Theory.
F. The temperature of the universe is decreasing: This statement aligns with the understanding that as the universe expands, the temperature decreases. Cooler temperatures are indicative of universe expansion, supporting the Big Bang Theory.
Based on the analysis above, the three answer choices that provide evidence of universe expansion supporting the Big Bang Theory are C. An enormous amount of weak cosmic background radiation has been detected in the universe, D. Galaxies are moving away from each other, and F. The temperature of the universe is decreasing.
3. To determine which sentence about galaxies provides evidence of universe expansion supporting the Big Bang Theory, we can analyze the information provided in each option:
A. Galaxies are moving away from each other: This statement aligns with the observation of galaxies receding from each other, also known as the Hubble's Law. The expansion of the universe is demonstrated through the movement of galaxies away from each other, providing evidence supporting the Big Bang Theory.
B. Galaxies are moving more slowly than they have in the past: This statement does not directly support the concept of universe expansion or the Big Bang Theory, as it suggests a decrease in the movement speed of galaxies rather than an increase.
C. Galaxies are moving at different speeds and in different directions: This statement describes the motion of galaxies in various directions and at different velocities. While it showcases their dynamic nature, it does not specifically provide evidence of universe expansion supporting the Big Bang Theory.
D. Galaxies are in constant motion: This statement is true in a general sense, as galaxies are in motion due to various factors such as gravitational interactions. However, it does not specifically provide evidence of universe expansion supporting the Big Bang Theory.
Based on the analysis above, the answer choice that provides evidence of universe expansion supporting the Big Bang Theory is A. Galaxies are moving away from each other.