Light
What is light?
A particle that behaves as a wave.
A star that will only ever fuse Hydrogen to Helium.
Red Dwarf
All stars are born from a cloud of gas known as a ___________________.
Stellar Nebula
All stars fuse ____________ to __________ for the majority of their lives at a rate of 4-to-1.
Hydrogen to Helium
Redshift is related to the Doppler Effect, which deals with _______ waves as in a passing train.
sound
What is a photon?
A particle of light.
A black dwarf.
The _________ the star, the more pathways its lifecycle can take.
more massive/larger
What force causes a star to form and start nuclear fusion?
Gravity.
The _________ of the universe is what first prompted the idea of the Big Bang.
expansion/growth
Blue light has a ________ frequency compared to red light.
higher
The type of star that our sun will eventually become.
A Red Giant.
When is a star considered "dead"?
When it stops undergoing nuclear fusion.
The release of energy during nuclear fusion is caused by ___________.
the destruction of matter/loss of mass
The large abundance of the element ________ is one of the major pieces of evidence for the Big Bang.
hydrogen
Light was proven to be a wave due to the ______________ experiment.
double-slit
The only star that can fuse Iron (Fe).
A supergiant.
As a star continues to fuse heavier elements, its size will _________.
increase/expand/grow
The element that absorbs energy when it is created by nuclear fusion, causing a star to collapse.
Iron (Fe)
As stars and galaxies get further away, their rate of recession ___________.
increases/gets faster
Light was proven to be a particle due to the _____________ effect.
The explosion of a star caused by the fusion of iron that results in all of the natural elements.
Supernova
The three potential outcomes of a supernova are _____________.
stellar nebula, neutron star, black hole
The elements a star can fuse are determined by the ________, _______, and _______ of the star.
size/temperature/pressure
True or False: because the majority of stars and galaxies are redshifted, this implies we are the center of the universe as things expand away from us.
False