Term
| what is a measure of the average kinetic energy of particles in a gas? |
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Definition
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Term
| what is the freezing point of water at its purest form? |
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Definition
| freezing rain - 32 degrees fahrenheit |
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Term
| Kelvin is also referred to as what? |
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Definition
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Term
| then coldest cold can get is when? |
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Definition
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Term
| the speed of particles is related to which method of temperature? |
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Definition
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Term
| what is the cause of the big bang? |
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Definition
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Term
| could someone watch the big bang from the outside? |
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Definition
| NO - all space and energy are inside! |
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Term
| The big bang began as what? |
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Definition
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Term
| As the universe expanded and cooled, matter formed according to who's equasion? |
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Definition
| Einstein's equation E = mc2 |
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Term
| what were the first particles to form? |
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Definition
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Term
| quarks later formed what? |
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Definition
| nucleons (protons and neutrons) in equal amounts (matter and antimatter) |
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Term
| although it is not well understood why matter dominates today, what is one possible answer? |
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Definition
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Term
| As the universe expands, what happens to radiant energy? |
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Definition
| it is "stretched" into longer wavelengths |
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Term
| what is the orgin of cosmic background radiation? |
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Definition
| as the universe expanded and cooled, radiation became decoupled from matter (scattering minimized) |
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Term
| Cosmic background radiation seen as highly red shifted today because of what? |
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Definition
| the expansion of the universe |
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Term
| Cosmic background radiation has a black body temperature of what? |
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Definition
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Term
| Early protons and neutrons fused and produced helium via what? |
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Definition
| the proton-proton reaction |
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Term
| early protons and neutrons fused and produced helium via the proton-proton reaction in limited amounts due to what? |
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Definition
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Term
| as the universe continued to cool, it becomes __% hydrogen and __% helium by the number and __% hydrogen and __% helium by the mass. |
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Definition
90H-10He by the number
74H-26He by the mass |
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