Our Solar System

What is the name of this sun-centered model of our solar system?

• Galaxy model

• Geocentric model

• Lunar model

• Heliocentric model

Tags

NGSS.MS-ESS1-2

In the 1500s, an astronomer proposed that Earth orbited the Sun rather than vice versa. Which statement summarizes the major impact of this idea on human thought?

• Earth was much older than had previously been thought.

• Earth was no longer thought to be the center of the universe.

• Earth was thought to be created by random factors.

• Earth was thought to be moving differently from other objects in space.

The heliocentric model of our Solar System is based off of the Sun being at the center. Before astronomers agreed on the heliocentric model, what was believed to be the center of our solar system?

• The Cat's Eye Nebula was at the center of our solar system

• Earth was at the center of our solar system

• Alfa Centauri was at he center of our solar system

• The Solar System had no center because all the planets' orbits were random.

Early astronomers thought that all components in our solar system revolved around Earth. With new evidence and discoveries astronomers changed theory to a sun centered solar system. Which of the following best describes why geocentric model was replaced by the heliocentric model?

• A more precise age has been established for the formation of the solar system.

• More direct observations have enabled scientist to change solar system models.

• Computers are better able to develop scientific models than humans are.

• Scientist established that a different set of laws govern the motion of our solar system than govern the motion of other solar systems.

Tags

NGSS.MS-ESS1-2

What was a compelling reason that Copernicus's Heliocentric model of the solar system was replaced with Kepler's Heliocentric model of the solar system?

• irregularities with the motion of the planets

• irregularities with the motion of asteroids

• irregularities with the motion of the Sun

• irregularities with the motion of the Moon

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which of these statements accurately describes Newton’s law of universal gravitation?

• The square of a planet’s orbital period is proportional to the cube of the planet’s mean distance from the Sun.

• The orbit of a planet, or other body, around the Sun is an ellipse, with the Sun at one focus of the ellipse.

• As a planet moves around its orbit, the planet sweeps out equal areas in equal amounts of time.

• Gravitational force increases as the mass of an object increases or as the distance between two objects decreases.

Tags

NGSS.HS-PS2-4

When is the gravitational attraction between the two objects the strongest?

• masses are large and the objects are close together

• masses are small and the objects are far apart

• masses are small and the objects are close together

• masses are large and the objects are far apart

Tags

NGSS.MS-PS2-4

Which best describes why gravity on Earth has a stronger attraction with you than the Sun does?

• The sun has more mass than Earth.

• Earth has more mass than the sun.

• Earth has more magnetism than the sun.

• Despite being less massive, Earth is much closer.

Tags

NGSS.MS-PS2-4

Which of the following is the correct order of the structures of the Sun from outside to inside?

• photosphere, corona, chromosphere, core

• corona, photosphere, chromosphere, core

• corona, chromosphere, photosphere, core

• core, photosphere, chromosphere, corona

If you had an assignment to build a realistic model of the sun, which of the following would you need to include in your representation of the Sun?

• She should explain that the Sun is made up of gaseous layers that surround an iron core.

• She should show that the Sun revolves around the planets, determining the length of year.

• She should show that sunspots can be seen as white areas on the Sun’s surface.

• She should explain that the Sun rotates, even though different parts rotate at different rates.