STAAR Practice Questions – Day 8

First Name

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Last Name

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Which statement best describes this type of galaxy?

• The image is a spiral galaxy and our solar system can be found in the bright center of the galaxy.
• The image is an irregular galaxy because each of the arms has a different length.
• The image is an elliptical galaxy and is where our solar system can be found.
• The image is a spiral galaxy and is made up of billions of stars, gas, and dust held together by gravity.

Based on the diagram, which statement about Star 1 and Star 2 is correct?

• Star 1 is cooler and less bright than Star 2.
• Star 1 is cooler and brighter than Star 2.
• Star 1 is hotter and less bright than Star 2.
• Star 1 is brighter and larger than Star 2.

What is the force that keeps the planets in our solar system orbiting the Sun?

• potential energy
• resistance
• gravity
• momentum