Which new idea did Copernicus introduce that significantly modified the geocentric model of the universe?(1 point)
Responses
The motion of planets is not uniform and circular.
The motion of planets is not uniform and circular.
Earth is at the center of the universe.
Earth is at the center of the universe.
The universe includes objects we cannot see.
The universe includes objects we cannot see.
The sun is at the center of the universe.
The sun is at the center of the universe.
The theory is based on the idea that an explosion did not occur; therefore, evidence of radiation would not be predicted in the theory.
Ancient people lacked modern instruments and tools to gather information.
Galaxies are moving away from each other, with galaxies farther away moving faster.
Which idea of the geocentric model of the solar system was most contested by some philosophers?(1 point)
Responses
The universe was the only object they could see.
The universe was the only object they could see.
Earth was not moving.
Earth was not moving.
The motion of the planets was uniform
Theories About the Universe Quick Check
3 of 53 of 5 Items
Question
Use the table to answer the question.
Big Bang Theory Steady State Theory
Universe began as a single small point that grew intensely hot and exploded. No explosion occurred. Universe has always existed. There is no beginning or end to the universe.
As the universe expands, it becomes less dense. Density of the universe never changes.
Galaxies and stars formed from clouds of dust and gas. When galaxies and stars burn out, new ones are created to replace them.
Radiation detected in space provides evidences that an explosion occurred. Radiation in space cannot be explained.
Which statement best describes why the steady state theory cannot explain the radiation detected in space?
(1 point)
Responses
The theory is based on the idea that an explosion did not occur; therefore, evidence of radiation would not be predicted in the theory.
The theory is based on the idea that an explosion did not occur; therefore, evidence of radiation would not be predicted in the theory.
The theory is based on the idea that there is no end to the universe; therefore, findings of radiation would not be accounted for in the theory.
The theory is based on the idea that there is no end to the universe; therefore, findings of radiation would not be accounted for in the theory.
The theory is based on the idea that galaxies and stars are continuously replaced; therefore, facts about radiations would not be included in the theory.
The theory is based on the idea that galaxies and stars are continuously replaced; therefore, facts about radiations would not be included in the theory.
The theory is based on the idea that the density of the universe never changes; therefore, information about radiation would not be present in the theory.
Which is the most likely reason that the earliest theories about the universe supported the geocentric model?(1 point)
Responses
Ancient people lacked modern instruments and tools to gather information.
Ancient people lacked modern instruments and tools to gather information.
Ancient people were not able to see the different objects in the sky.
Ancient people were not able to see the different objects in the sky.
Ancient people were not interested in investigating how the universe formed.
Ancient people were not interested in investigating how the universe formed.
Ancient people believed all objects in space revolved around the sun
Which statement best describes the movement of galaxies in the universe?(1 point)
Responses
Galaxies are moving toward each other, with galaxies farther away moving faster.
Galaxies are moving toward each other, with galaxies farther away moving faster.
Galaxies are moving toward each other, with closer galaxies moving faster.
Galaxies are moving toward each other, with closer galaxies moving faster.
Galaxies are moving away from each other, with closer galaxies moving faster.
Galaxies are moving away from each other, with closer galaxies moving faster.
Galaxies are moving away from each other, with galaxies farther away moving faster.
The correct answer is: The sun is at the center of the universe.
Copernicus introduced the heliocentric model of the universe, which placed the sun at the center and suggested that the Earth and other planets revolve around it. This idea significantly modified the geocentric model, which had previously held that Earth was at the center of the universe. To arrive at this answer, you could have eliminated the options that were not related to the placement of Earth or the sun in the cosmological model.