ES Astronomy Unit Test Review

Front

Which planet has the most eccentric orbit?

Back

Mercury has the most eccentric orbit of all the planets in our solar system.

Front

How are surface winds deflected in the Northern and Southern Hemispheres due to Earth's rotation?

Back

Winds are deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.

Front

What type of star is found at the lower right end of the main sequence on the H-R diagram?

Back

A red dwarf star is located at the lower right end of the main sequence on the H-R diagram.

Front

Why is the light from distant galaxies red-shifted?

Back

The light from distant galaxies is red-shifted because they are moving away from us.

Front

Where is a planet moving faster in its orbit?

Back

A planet is moving faster from Position A to B in its orbit.

Front

What is the definition of eccentricity in astronomy?

Back

Eccentricity measures the deviation of an orbit from being circular; a higher eccentricity indicates a more elongated orbit.

Front

What is the Coriolis effect?

Back

The Coriolis effect is the deflection of moving objects caused by the rotation of the Earth, affecting wind and ocean currents.

Front

What is a red dwarf star?

Back

A red dwarf star is a small and cool star on the main sequence, with a low mass and low luminosity.

Front

What does redshift indicate about an object in space?

Back

Redshift indicates that an object is moving away from the observer, often used to determine the speed of galaxies.

Front

What is the main sequence in the H-R diagram?

Back

The main sequence is a continuous band of stars that shows a relationship between luminosity and temperature.