History, Gravity and the Sun Test Review

Which law is shown below?

This astronomer created an Earth-centered theory of the universe.

Which law is shown below?

Formed in the part of the disk that was so hot that only rock and metals were in solid form.

A nebula is held together by the balance of

Which term best describes the shape of the orbits of planets in our solar system?

Fusion occurs when nuclei ________________ to produce _____________ nuclei and energy.

This astronomer showed that planets move in elliptical orbits around the sun.

The sun forms.

Using large tools, this astronomer made very detailed astronomical observations.

This astronomer used parallax to determine that the Earth went around the Sun.

This astronomer proved that there were many galaxies.

Appear as very bright spots on the sun's photosphere. They are an explosive release of energy.

What is number 4, the visible surface of the sun?

This astronomer created the Sun-centered theory of the universe.

Plantesimals formed from the collisions of meter-sized bodies in this protoplanetary disk.

These are caused by the rising of hot gases and the sinking of cool gases.

As the nebula contracted, it began to rotate. Faster rotation = flattened = protostellar disk

What is number 6, the outer atmosphere of the sun?

In which model of the solar system does the Sun revolve around Earth?

This astronomer was one of the first to use a telescope to observe objects in space.

This astronomer showed that gravity keeps planets and moons in orbit.

What is number 3, the layer where energy is transferred by movement of matter?

Which law is shown below?

Supernova explosion kicks out dust and gas.

What is number 1, part that is hot enough to cause the nuclear reactions that produce energy?

Huge loops of relatively cool gas that extends outward from the photosphere thousands of Km.