Formation of Galaxies

The matter in an object, which affects gravitational forces

• Gravitational force

• Force

• Mass

• Weight

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Why do the planets and other celestial objects in our solar system revolve around the Sun?

• The Sun has the greatest mass of any object in the solar system and therefore the greatest gravity

• The sun is the center of the universe

• The sun is the brightest thing in space and everything is attracted to it.

• The Sun has the greatest weight so everything pushes towards it

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

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

• The motion of the objects within it

• The size of its largest stars

• Its location within the universe

• The color of light it emits

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

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

• Three Musketeers

• Snickers

• Twix

• Milky Way

What force played a major role in the formation of the solar system?

• Magnetism

• Push

• Pull

• Gravity

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What is the Big Bang Theory?

• Two giant stars hit each other and exploded.

• The universe started as a hot, dense point in space that is rapidly expanding.

• The universe got too big, exploded, and started over.

• None of the above

Tags

NGSS.HS-ESS1-2

Students are making a model of planetary motion. The students tie a tennis ball to a string. The string passes through a spool and is attached to a 1 kilogram mass.

The mass pulls down on the string as the students spin the tennis ball around the spool. If the students wish to change the model to show what would happen if the sun had a greater gravitational pull, what change should they make?

• Spin the tennis ball at an increased speed

• Replace the 1 kg mass with a 2 kg mass

• Tie the tennis ball with a longer string

• Change the spool to a longer one

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4