Astronomy - CMS

Heliocentric theory gained support when Galileo observed that

• the orbit of each planet is an ellipse

• Venus goes through phases similar to those of Earth's moon

• one side of the moon always faces Earth

• most of the smaller planets are closer to the sun

In the diagram, what model of the universe is represented?

• heliocentric model

• copernicus's model

• geocentric model

• Brahe's model

Tags

NGSS.MS-ESS1-1

At one time, observers believed that the Sun revolved around the Earth. This model was superseded by the heliocentric model which places the Sun at the center of the universe. Which BEST Describes how this relates to the nature of science?

• Models are an inefficient way of explaining observations

• Astronomy is an inexact science.

• Scientific knowledge is unchanging

• As we gain new understanding, we change our models.

Tags

NGSS.MS-ETS1-1

The ancient Greek philosopher Aristotle made a model of the solar system with the Earth at its center. He believed that planets moved on "crystalline spheres" and stars moved in outer spheres, as shown in the diagram. The "Prime mover" sphere "moved" the inner spheres around the Earth. Which kind of model does Aristotle's theory most resemble?

• Edwin Hubble's Big Bang Theory

• Copernicus's geocentric model

• Galileo's geocentric model

• Ptolemy's geocentric model

Which of the diagrams best represents the relationship among galaxies, the universe, and the solar system?

• 
• 
• 
• 

Tags

NGSS.MS-ESS1-2

If a new Sb galaxy were discovered, what would be its most likely diameter?

• 5,000 light years

• 8,000 light years

• 100,000 light years

• 30,000 light years

The picture shows sand used to make a model of a galaxy. In the model, each grain of sand best represents

• an asteroid

• a star

• a comet

• a black hole

Jordan is making a poster to show the Milky Way galaxy. Which objects should he include on his poster to BEST show the Milky Way?

• asteroids

• planets

• comets

• stars

Some data about the atmosphere on Mars is shown in the graph. What conclusions can be made about the ability of humans to breathe Martian air?

• Humans will be able to breathe the air because oxygen is present.

• Life support will be needed because the percentage of oxygen is too low.

• Oxygen and Nitrogen will make it possible for photosynthesis to produce food.

• It will be impossible to breathe air because the percentage of nitrogen is too low.

Jack constructed an accurate scale model of the solar system. In his model, the Sun was a basketball, Jupiter was a large marble, Neptune was a small marble, and Venus was a grain of sand. In this model, which would most accurately represent the size of Earth?

• a tennis ball

• a large marble

• a golf ball

• a grain of sand

Tags

NGSS.MS-ESS1-3