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Chapter 11 Test
Mr. Becks quiz on Chapter 11 pysical science
| Question | Answer |
|---|---|
| Axis of rotation | imaginary line through the center of the planet which it rotates |
| Period of Rotation | the time it takes for a planet to rotate its own axis |
| Period of Revolution | the time it takes for a planet to rotate around the sun |
| Ellipse | oval |
| astronomical unit | average distance from the Earth to the Sun (1 AU=149,600,000) |
| balanced forces | a net force of zero |
| satellite | an object that revolves around a planet |
| lunar phase | the different appearances of the Moon |
| eclipse | a total or partial obscuring of one celestial body by another |
| inner planet | 4 closest planets to the sun (Mercury, Venus, Earth, and Mars) |
| outer planets | planets that come after the asteroid belt between mars and Jupiter(Jupiter, Saturn, Neptune, and Uranus) |
| asteroid | a rock object smaller than a planet found between the orbits of Mars and Jupiter |
| comet | a small icy body in orbit around the sun |
| Meteor | a solid, interplanetary particles passing through Earths atmostphere |
| Kepler's first law | Planets Orbit the sun in Elliptical Paths |
| Kepler's second law | Equal Area in equal time |
| Kepler's third law | Orbital Period increases with distance to the sun(closer=faster) |
| Earths Orbit | -closest to the sun in January -farthest in July -orbital plane is tilted at an angle |
| Moons motion | -period of rotation is 28 days |
| Moons Phases | As the moon revolves around earth, the illuminated portion of the moon appears to change |
| Lunar Eclipses | when a portion of the moon is shaded from direct sunlight -earth shadow on moon |
| Solar Eclipses | exact alignment of the Moon, Earth, and the Sun -moons shadow on earth |
| Mercury | -closest to the sun -moves the fastest -no atmostphere |
| Venus | -similar to Earth -no oceans -atmostphere of carbon dioxide -brightest object in the sky -243 days of period of rotation |
| Earth | -only body with life -nitrogen and oxygen atmosphere |
| Mars | -atmosphere of carbon dioxide, nitrogen, and argon -two small moons(Phobos and Deimos) -water ice close to the surface |
| Jupiter | -largest planet -Galilean moons are the 4th biggest moons -more than 60 moons |
| Saturn | -gas giant made of hydrogen and helium -rings are made of ice and rock -30 moons |
| Uranus | -methane gas above deeper cloud layers makes it blue -rotates on its side as it orbits the sun -atmosphere is hydrogen and helium with a liquid core |
| Neptune | -13 moons and several rings -discovered in 1846 and still hasnt made a full orbit of the sun -atmosphere is made of hydrogen, helium, and methane |
| Comets | -had a nucleus -contains gases, dust, and bits of rock |
| Warmest to coldest | Blue, White, yellow, and Red |
| Meteoroid | a rock in space |
| Meteorite | a space rock landed on earth |
| Gas Giants | The last 4 planets made of hydrogen and helium |
| Dwarf Planets | -Ceres, Pluto, and Eris -Ceres(2.7 AU from the Sun; Orbit is 4.6 years) -Pluto(248 year orbit: 39.2 AU) -Eris(557 year orbit) |
| Life Cycle of Low Mass stars | nebula, main sequence, red giant, white dwarf |
| Life Cycle of High Mass stars | Nebula, main sequence, red supergiant, supernova, A)neutron B)black hole |
Created by:
zsmith4028
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