Nebular Theory

The theory that explains the formation of the solar system is called ____.

• Nebulis Theory

• Nebular Theory

• Big Bang Theory

• Big Nebulan Theory

What force acted on the massive nebula to collapse it and eventually form our sun?

• electrostatic force

• strong force

•  weak force

• gravity

Tags

NGSS.HS-PS2-4

What is the nebular hypothesis?

• Prediction about how the universe was formed

• Prediction of how the moon was formed

• Prediction of how comets were formed

• Prediction of how the Solar System was formed

What caused the nebula to collapse and start spinning?

• Supernova

• Asteroid collision

• Big Bang

• Nearby star exploded

the planets of the solar system formed as 

• the center of the gas cloud cooled

• planetesimals flattened into a rotating disk

• planetesimals collided into one another

• the sun absorbed extra gas and dust from the solar system

How long ago was our sun formed?

• 10 million years ago

• 5 million years ago

• 4.5 billion years ago

• 2 billion years ago

The nebula begins to spin and flatten. Then what?

• The center of the nebula begins to get hot and dense.

• Gravity causes light gases to move to the center while heavier materials and ice stay in outer areas.

• A protostar forms in the center of the nebula.

Gravity causes light gases to move to the center while heavier materials and ice stay in outer areas. Then what?

• The center of the nebula begins to get hot and dense.

• A protostar forms in the center of the nebula.

• The nebula begins to spin and flatten.

The center of the nebula begins to get hot and dense. Then what?

• The nebula begins to spin and flatten.

• The SUN is born, fusion begins in the core.

• A protostar forms in the center of the nebula.

About 4.6 billion years ago, a cloud of stellar dust or nebula exists within the Milky Way. What happened next?

• Shock waves hit the nebula causing it to collapse.

• The energy enriched nebula begins to contract further due to gravity.

• Supernova of a nearby star occurs.

Tags

NGSS.HS-ESS1-6