ES Astronomy Unit Test Review

Front

What happens to the wavelengths of light in red shift?

Back

The wavelengths of light become longer.

Front

What is a large group of stars, dust, and gas held together by gravity called?

Back

Galaxy

Front

What is the shape of the travel path of planets in our solar system?

Back

Ellipse

Front

Why do high and low tides occur at different times each day?

Back

The moon is not in the same relative position to the Earth each day.

Front

Where is a planet moving faster in its orbit?

Back

Position A to B.

Front

What is the term for the apparent shift in the position of an object when viewed from different angles?

Back

Parallax.

Front

What is the main force that holds galaxies together?

Back

Gravity.

Front

What is the term for the distance light travels in one year?

Back

Light year.

Front

What is the name of our galaxy?

Back

The Milky Way.

Front

What is the phenomenon called when light from distant galaxies shifts towards the red end of the spectrum?

Back

Red shift.