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9th Grade Physical S
Final Exam-Module 16
| Question | Answer |
|---|---|
| Nuclear Fusion | The process by which two or more small nuclei fuse to make a bigger nucleus. |
| Nuclear Fission | The process by which a large nucleus is split into smaller nuclei. |
| Critical mass | The amount of isotope necessary to sustain a chain reaction. |
| Absolute magnitude | The brightness of a star, corrected for distance on a scale of -8 to +19. The smaller the number, the brighter the star. |
| Apparent magnitude | The brightness of a star as seen in the night sky. The smaller the number, the brighter the star. |
| Light year | The distance light could travel along a straight line in one year. |
| Galaxy | A large ensemble of stars, all interacting through the gravitational force and orbiting around a common center. |
| From the inside to the outside, name the four regions of the sun. | Core, radiative zone, convection zone, photosphere. |
| What nuclear process occurs in the sun's core? | Nuclear fusion |
| How does the sun get its power? In which region of the sun does this process occur? | nuclear fusion core |
| For both nuclear fusion that occurs in the sun and the nuclear fission that occurs in the nuclear power plant, what can we say about the mass of the starting materials compared to the mass of what's made in the end? | The starting mass is slightly larger than the ending mass. |
Created by:
LiseBrinkley
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