TEKS 8.8A Universe Test Review PER 3

Front

What is the relationship between galaxies and stars?

Back

Galaxies contain many stars.

Front

What is the spectral class of a star with a temperature of 11,000 K?

Back

Spectral Class A.

Front

Why can't people on Earth see the entire shape of the Milky Way galaxy?

Back

Earth is a part of this galaxy.

Front

What type of tide is created by the arrangement of the Earth, Moon, and Sun during a neap tide?

Back

Neap tide.

Front

Is the Earth's Sun classified as a main sequence star?

Back

True.

Front

Define a galaxy.

Back

A galaxy is a massive system that consists of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Front

What is the Milky Way galaxy?

Back

The Milky Way galaxy is the galaxy that contains our Solar System, characterized by a spiral shape.

Front

What are the two main types of tides?

Back

Spring tides and neap tides.

Front

What causes tides on Earth?

Back

Tides are caused by the gravitational pull of the Moon and the Sun on Earth's oceans.

Front

What is a main sequence star?

Back

A main sequence star is a star that is in the stable phase of its life cycle, fusing hydrogen into helium in its core.