Astronomy Final - Pandemic

Bending of a light beam as it passes from one transparent medium to the next is called ___________

• Focus

• Refraction

• Reflection

• Chromatic aberration

The magnetic field of the Earth ____________

• is how we keep time on our planet

• functions as a shield from Solar radiation

• makes iron magnetic

• glows in the northern and southern regions of the Earth

It's agreed that the Earth's magnetic field is generated by ___________

• Lava

• Movement of continents

• Spinning solid iron core

• the Moon

To find the North Celestial Pole you have to find _________ in the constellation of Ursae Minoris.

• Sirrus

• Polaris

• Alpha Centauri

• Vega

On this day in March, the day and the night are equal in length.

• Autumnal equinox

• Summer solstice

• Vernal equinox

• Winter solstice

A type of irregular "wondering" motion that planets seem to have when observed from Earth is called _________

• Circumpolar motion

• Transit motion

• Equatorial motion

• Retrograde motion

Astronomers call the outer planets in the Solar System _______ planets.

• Last

• Jovial

• Terrestrial

• Cold

 $\alpha$  (alpha) Ursa Majoris is _____________ than  $\beta$  (beta) Ursa Majoris. 

• Redder

• Bluer

• Dimmer

• Brighter

Icy objects that orbit the Sun and originate from the Oort Cloud are called ________

• Comets

• Meteoroids

• Asteroids

• NEO's

Which galaxies contain lots of young blue stars, vigorous star formation, lots of interstellar medium, and random stellar motions?

• Spiral

• Barred-Spiral

• Elliptical

• Irregular