Universe's Beginnings and Structures

If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...

• Moving towards the Earth
• Moving away from the Earth
• This is a trick question that cannot be answered
• It isn't a star, it is a very large blueberry.

If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...

• Moving towards the Earth
• Moving away from the Earth
• This is a trick question that cannot be answered
• It isn't a star, it is a very large blueberry.

Why is the light from distant galaxies red-shifted?

• They produce more red light than nearby galaxies
• They are moving away from us
• The longer wavelengths are filtered out more by dust
• They are moving toward us

The first stage in the life cycle of stars is a

• Protostar

• Nebula

• Main sequence

• Supernova

The last element a low mass star can make by fusion is

• Hydrogen

• Carbon

• Helium

• Iron

What makes a star stable?

• External pressure(Gravity) > internal pressure (Nuclear Fusion)

• Internal pressure (Nuclear Fusion) > external pressure( Gravity)

• Internal pressure (Nuclear Fusion) = external pressure ( Gravity)

• None of the above

In about 5 billion years, our sun will grow 100 times its size into its next stage called a

• Supernova

• Neutron Star

• Red Super Giant

• Red Giant

This type of planet has a solid surface.

• terrestrial
• gas giant

The greater the ___ between two objects, the ___ the force of gravity.

• distance/stronger
• magnetism/weaker
• distance/weaker
• magnetism/stronger

"A dirty snowball," or "a mass of ice and rock" describes a

• Comet

• Asteroid

• Meteorite

• Moon