Earth Review: Space

The diagram represents the elliptical orbit for one planet in our solar system. The two foci of the orbit are shown as the Sun and F₂. The arrangement and movement of celestial objects in our solar system is best described by the

• Spiral

  Model

• Cosmic Model

• Geocentric Model

• Heliocentric model

Letters X, Y, and Z identify which components of our solar system?

• X = asteroid; Y = meteor; Z = comet

• X = asteroid; Y = meteor; Z = moon

• X = comet; Y = meteor; Z = asteroid 

• X = comet; Y = moon; Z = meteor

Jupiter is a Jovian planet. Compared to the terrestrial planets, Jupiter has a

• shorter period of revolution

• shorter distance to the Sun

• greater density

• greater mass

Which planet takes longer to complete one rotation on its axis than it does to complete one orbit of the Sun?

• Venus

• Earth

• Mercury

• Mars

Most asteroids in our solar system are located in the asteroid belt between the orbits of Mars and Jupiter. What is the approximate distance from the Sun to the asteroid belt?

• 129 million KM

• 210 million KM

• 403 million km

• 1103 million km

Which characteristic is directly related to a planet’s average distance from the Sun?

• period of revolution

• period of rotation

• eccentricity of orbit

• equatorial diameter

The gravitational attraction between two objects in the solar system is greatest when their masses are

• small, and the objects are close together

• small, and the objects are far apart

• large, and the objects are far apart

• large, and the objects are close together

Compared to the Jovian planets in our solar system, the terrestrial planets have 

• less mass and are less dense 

• less mass and are more dense

• more mass and are less dense

• more mass and are more dense

Between which two planets are most asteroids located?

• Earth and Mars

• Mars and Jupiter

• Jupiter and Saturn

• Saturn and Uranus

Which inference best describes the interiors of the planets in our solar system?

• Both terrestrial and Jovian planets have layered interiors, with density decreasing toward the center.

• Both terrestrial and Jovian planets have layered interiors, with density increasing toward the center.

• Only terrestrial planets have layered interiors, with density decreasing toward the center

• Only Jovian planets have layered interiors, with density increasing toward the center