Which of these items provide evidence supporting the Big Bang theory? Select the two correct items.(1 point) Responses cosmic background radiation cosmic background radiation composition of matter in the universe composition of matter in the universe rate of star formation rate of star formation sizes and shapes of distant galaxies
The correct items that provide evidence supporting the Big Bang theory are:
1. Cosmic background radiation: The discovery of cosmic microwave background radiation, which is the remnants of the early universe, is consistent with the prediction of the Big Bang theory.
2. Composition of matter in the universe: The observation that the universe is composed mainly of hydrogen and helium, with traces of other elements, is consistent with the predictions of the Big Bang theory.
Which evidence supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang?(1 point) Responses Its mass fluctuates greatly. Its mass fluctuates greatly. Its temperature is uniform. Its temperature is uniform. Its mass is uniform. Its mass is uniform. Its temperature fluctuates greatly.
The evidence that supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang is that its temperature is uniform.
A scientist, using a telescope, sees arcs of light around a galaxy. In 3–5 sentences, explain the cause of the arcs of light.
The arcs of light seen around a galaxy are known as gravitational lensing. They occur due to the bending of light by the gravitational pull of a massive object in front of the observed galaxy. In this case, the gravity of another galaxy or a cluster of galaxies in the foreground causes the light from the background galaxy to bend, creating a distorted and elongated appearance in the form of arcs. Gravitational lensing is a phenomenon predicted by Einstein's theory of general relativity and provides valuable insights into the distribution of mass in the universe.
How is dark energy related to the theory of the Big Bang?(1 point) Responses It causes the expansion of the universe to accelerate. It causes the expansion of the universe to accelerate. It seeded the formation of galaxies and star clusters. It seeded the formation of galaxies and star clusters. It causes the spinning of galaxies. It causes the spinning of galaxies. It causes the universe to expand.
Dark energy is related to the theory of the Big Bang in that it causes the expansion of the universe to accelerate. According to current models, dark energy is a hypothetical form of energy that fills empty space and has a negative pressure. Its existence helps to explain the observed accelerated expansion of the universe, which was one of the key predictions of the Big Bang theory.
Which represents a correct match between ideas related to the formation of the universe? Select the two correct answers.(1 point) Responses structures forming in the early universe — dark matter structures forming in the early universe — dark matter greatest percent of mass of universe — dark matter greatest percent of mass of universe — dark matter accelerating expansion — dark energy accelerating expansion — dark energy glowing nebulae — dark energy glowing nebulae — dark energy
The two correct matches between ideas related to the formation of the universe are:
1. Structures forming in the early universe — dark matter: Dark matter played a crucial role in the formation of structures, such as galaxies and galaxy clusters, in the early universe due to its gravitational influence.
2. Accelerating expansion — dark energy: Dark energy is believed to be responsible for the observed accelerating expansion of the universe, acting as a repulsive force that counteracts gravity at large cosmic scales.