Universe Vocab

The ___________ is the theory that the universe originated in a huge explosion that released all matter and energy.

A lightyear is a measure of

• Time

• Distance

• Speed

• Velocity

A type of nuclear reaction in which nuclei combine to form more massive nuclei and release energy

• Nuclear fusion

• Nuclear fission

• Nuclear energy

• Supernova

A ________ occurs when the wavelength of light changes due to an object moving away

A __________ occurs when the wavelength of light changes as an object moves towards an observer

A small, hot, dim star that is the leftover center of an old star

• Asteroid

• Comet

• White dwarf

• Meteroid/Meteor

Light cannot escape from this region in space

• Nebula

• Supernova

• Circular region

• Black hole

Gamma rays, visible light, and radio waves are all part of the

• Light we can see

• Electromagnetic spectrum

• Mechanical spectrum

• Ocean

The _______ _________ includes the sun and all of the planets and other bodies that travel around it

A band of colors is known as a

• Spectrum

• Red shift

• Blue shift

• Yellow shift