Term
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Definition
Radio waves
o Infra-red (microwaves)
o Visible light
o UV
o X-rays
o gamma-waves |
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Term
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Definition
| an electromagnetic spectrum |
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Definition
| the wave is reduced to the size of a cell, and all of the energy (a lot of energy) will be stored in cells, which can destroy them. |
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Definition
| cooks things from the inside out, boils the water on the inside. |
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Term
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Definition
| the average energy and density of a particle |
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Term
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Definition
All observers measure the speed of light in a vacuum to have the same value.
very material that the light passes through travels at a different speed.
When light slows down, it changes direction |
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Term
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Definition
| information carrying particles |
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Term
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Definition
Emission
Absorbtion
Continuous |
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Term
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Definition
o Lyman – lands on the first shell (UV light) one
o Balmer - lands on the second shell (Visible Light) two
o Paschen – lands on the third (IR Light)three
o Brackett – lands on the fourth (IR Light) four |
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Definition
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Term
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Definition
| – light bounces off of gas |
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Term
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Definition
| – gas absorbs photons from the light and adds energy to the molecule. |
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Term
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Definition
| – allows light to pass through it |
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Definition
| – is solid and doesn’t allow light through |
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Term
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Definition
| Part of the big bang theory is that when the universe was formed, it was opaque and as it expanded rapidly it became transparent |
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Term
| tHE UNIVERSE IS DIVIDED IN TWO DIFFERENT TYPES OF PARTICLES. |
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Definition
Protons and neutrons (matter)
o Radiation (photons) |
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Term
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Definition
move towards
there is only one |
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Term
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Definition
moving away
o Classical
o Cosmological |
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Term
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Definition
| Uniform expansion – the expansion is the same everywhere. Grouped in grid point |
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Term
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Definition
| motion through the environment. For example, the moving sidewalk isn’t moving and you start walking. The location of your feet on the sidewalk changes. |
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Term
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Definition
motion with the environment. For example, the moving sidewalk is carrying you from one place to another. The location of your feet on the sidewalk stays the same.
· |
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Term
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Definition
| in the very early universe there was a brief time that the universe expanded very quickly after the big bang carrying everything with it. |
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Term
| Matter radiation decoupling |
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Definition
| A big fancy term for light we see from very far away. It’s when the universe changes from being opaque to being transparent. The photons are no longer trapped by the matter particles. When the universe changed the radiation was no longer coupled to the matter |
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Definition
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Definition
| Basically they were found by overlaying light and radio maps and looked at the spectrum and found that they all have redshifts |
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Term
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Definition
| Queasy stellar Radio source |
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Definition
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Definition
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| when the Polars are slower then the Equator and flattens the Quasar in a disk. |
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Definition
| The universe wants things to be easy, so ti makes things roung and spherical |
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Term
| conservation of angular momentum |
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Definition
| If you take something and put it in a smaller volume, it moves faster |
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Term
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Definition
o Gravity pulls stuff together
o First hindrance is electron degeneracy. The first thing that tries to stop the collapse
o Second hindrance is neutron degeneracy. The second thing that tries to stop the collapse
o Finally neutrons shatter. |
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Term
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Definition
| classified as E0-E7. E0 looks like a basketball while E7 looks more like a football. E1-E6 is on more of a grade-scale, gets flatter as the number increases |
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Term
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Definition
| classified as Sa – Sd. S – spiral, lowercase letter – describes the length of the arms. For example Sa has short spiral arms, Sc has long spiral arms. Sd is where the spiral arms break or start to break apart. |
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Term
| Solar exclipse expirament purpose |
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Definition
| To see if gravity changes the path of light |
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Term
| problem of big bang theory |
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Definition
Curvature
-The universe doesn’t show as much curvature as expected |
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Term
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Definition
Positive
Negative
Flat
-defined with triangles. |
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Term
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Definition
| triangles have more than 180o |
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Term
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Definition
| area where two parabolas intersect, for example a saddle |
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Definition
| at some point the universe will stop expanding. It won’t contract, it will just sit there. |
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Definition
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Definition
| the universe keeps expanding |
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Term
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Definition
| the universe stops expanding and begins contracting |
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