Universe / gravity / solar system Summative #1 review quiz

______caused the solar nebula to collapse toward the center, causing the center to be dense and hot.

Which of the following correctly lists the objects of space in order from largest to smallest?

Light-year is the distance light goes in one year. A star is 5 ly from Earth how long dose it take to reach Earth?

What do planets in a solar system orbit?

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Galaxies are large groups of stars. What would you claim keeps the stars in a galaxy from moving away from each other?

Which picture above has the greatest amount of gravitational force?

The objects that compose our solar system vary in size. What is the largest object in our solar system?

Which of the following does the illustration show?

Which flow chart best describes the formation of the solar system?