Studied by 3 people
gravitational pull
The ________ created violent collisions into lumps of matter that eventually formed the planets.
gravitational inward
As hydrogen has stopped being fused, the ________ force causes the star to collapse.
giant cloud of dust
A nebula is a(n) ________ and gas in space.
Stars
________ are Formed in a nebula, a giant cloud of dust and gas (mainly hydrogen)
Plasma
________ is a state of matter in which atoms have broken down by heat.
Radiation
________ from the sun spits away lighter elements, creating solid planets.
Apparent brightness
________ refers to how bright a star appears to be from earth.
wavelength of light
Redshifting increases the ________.
Absolute brightness
________ refers to how bright a star is from the same distance.
galaxy
A(n) ________ is a huge collection of gas, dust, and billions of stars and their solar systems.
Planets
________ are born from clouds (nebula) of gas and dust that orbit new stars.
strong magnetic fields
They have ________, ejecting particles from their magnetic poles.
Cosmic Microwave Background
The ________ is the cooled remnant of the first light that could ever travel freely throughout the Universe.
Neutron stars
________ are extremely dense stars made of the collapsed inner core.
How do people measure distances in space
using light year calculations
How do we measure the brightness of a star?
absolute vs apparent brightness
Evidence for the big bang
redshift, and background cosmic microwave radiation
What is accretion?
Accretion is the process of gravity clumping chemical matter around a newly formed star together
What is plasma?
Plasma is a state of matter in which atoms have broken down by heat. This produces freely moving protons and electrons – a "soup" of charged particles.
Note 
Flashcard (21)