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In other words each generation of stars would be more

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In other words, each generation of stars would be more metallic than the previous one. Our sun is a population I star. Keep in mind that the population category of a star only relates to its age and metallicity; it doesn't matter what population a star is in, it still goes through the exact same process of formation, evolution and death you learned about. The Electromagnetic Spectrum, Kepler's Laws of Motion and Other Important Discoveries _____________ and helium, the most abundant elements in stars in the solar neighborhood, are also the most abundant constituents of the stars in all kinds of clusters. ailed Explanation: Hydrogen. Open clusters have a comparable element content to that of the sun. However, globular clusters have a much lower element content. Differences in chemical composition are related to differences in stellar population. The ________ and the vast majority of other stars are stable and in a steady state, neither expanding nor contracting. Explanation: Sun. This state of stability is called a condition of equilibrium. All the forces within it are balanced so that at each point within the star, the temperature, pressure, density, etc. are maintained at constant values. A balance between the weights of various layers and the pressures that support them is called ______________ equilibrium. Explanation: Hydrostatic. This shows that the surface and internal temperatures of stable stars is balanced. If the internal gas pressure in a star were not great enough to balance the weight of its outer parts, the star would collapse and contract until the gas pressure inside built up to the point where it could support the star.
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The ____________ gas law provides a mathematical relation between the pressure, density, and temperature of an ideal gas and states that the pressure is proportional to the product of the density and temperature of the gas. : Perfect. The gases in most stars closely approximate an ideal gas and must obey this law. The pressure is proportional to the density and temperature of the gas. Energy associated with the motion of the molecules in a star is called stellar _____________ energy. Explanation: Thermal. The thermal energy of a star is the internal heat. The heat stored in a gas is simply the energy of the motion of the particles that comprise it. Energy that can be released by the collapse of a system is called ______________ energy. : Gravitational. Because a star is bound together by gravity, it has gravitational potential energy, as does a star cluster. If the various parts of a star fall closer together, it converts part of its potential energy into heat, some of which can be radiated away. Because of its enormous mass, the sun need contract only extremely slowly to release enough gravitational potential energy to account for its present luminosity.
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