Galaxy Review

Our Milky Way galaxy follows the same laws as our solar system in that it orbits around the center of the galaxy. Which type of galaxy orbits in a predictable motion?

• Irregular

• Elliptical

• Spiral

• None of these

Tags

NGSS.MS-ESS1-2

Scientist believe that the solar system formed when

• a giant explosion occurred in the universe

• there was a perfect alignment of stars and galaxies

• a cloud of gas and dust pulled together due to gravity

• friction of the gas and dust occurred

Tags

NGSS.MS-ESS1-2

A celestial body with more mass will have ________ gravitational force than one with less mass.

Tags

NGSS.MS-PS2-4

In a distant solar system, a planet orbits a star. The star has a certain mass (m1). The planet has a certain mass (m2). There is a certain distance between the planet and the star (d). Which of the following changes would INCREASE the amount of gravity between this star and planet? (select all that apply).

• Increase the mass of the star (m1).

• Increase the distance between the star and planet (d).

• Increase the mass of the planet (m2).

• Decrease the mass of the star (m1).

• Decrease the distance between the star and the planet (d).

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

The data table below provides information on the distance and period of orbit for the inner planets. Based on the pattern in the data, we can predict that the period of Mars' orbit will be -

• Less than 88 days

• between 88 and 224.6 days

• greater than 365.4 days

• exactly two times 224.6 days

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

Earth and its solar system are a part of which of the following galaxies?

• Andromeda

• Black Eye

• Milky Way

• Cartwheel

Tags

NGSS.MS-ESS1-2

Which of the following best describes the formation of the solar system?

• The sun ejected rocky material which formed the planets due to magnetic attraction forces.

• A rotating disk of gas and dust was drawn together by the force of gravity.

• One very large planetary body broke apart into several smaller planets.

• Several stars of different masses cooled and formed the planets and the sun.

Tags

NGSS.MS-ESS1-2

Gravity is responsible for which of the following characteristics of a galaxy?

• the motion of the objects within in

• The size of its largest star

• Its location within the universe

• the color of light it emits

Tags

NGSS.MS-ESS1-2

Large mass of stars

• solar system

• universe

• galaxy

• gravity

Tags

NGSS.MS-ESS1-2

All the space and the matter space contains

• dust

• gas

• gravity

• galaxy