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39 Cards in this Set
- Front
- Back
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How to qualify a proper planet |
1.must orbit the sun 2. Must have enough mass to keep a nearly round shape 3. Must be able to clear its own path while in orbi |
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How to classify inner and outer planets |
You can classify the inner and outer planets based on composition and distance from the sun |
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What is the Big Bang theory |
Is a theory in which the universe seemed to be expanding a lot |
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Analogy for the planets |
My very excellent mother just sent us nine pizzas |
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What are shooting stars |
Meteoroids or small bits of debris entering earths atmosphere. They burn as they are entering the atmosphere releasing light |
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The first clock |
Was a sundial, pillars and sticks in the ground |
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What is a celestial object |
A celestial object is any object that exists in space such as a planet a star or the moon that |
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What are constellations and name 3 |
Constellations are a group of stars that seem to form a distinctive pattern in the sky Three are the libra scale of justice, Ursa Major the great bear and Orion the hunter |
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What is a light year |
The distance that light travels in one year, about 9.5x10 exponent 12 |
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Who names the constellations |
The international astronomical union (IAU), and they have listed 88 official constellations they got cancer the crab, Cassiopeia the queen and Ursa Minor the little bear |
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Smaller groups of stars that form patterns within a constellation are called |
Asterisms |
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What is apparent magnitude |
The brightness of a star as seen from earth |
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Polaris |
The North Star |
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Why are the big dippers two end stars called pointer stars |
Because they both point to Polaris the North Star |
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Lunar eclipse |
The full moon passes through the umbra portion of earths shadow so earth is between the sun and the moon |
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How many lunar eclipses each year |
About two |
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Why is a lunar eclipse not every full moon |
The orbit of the moon 🌙 s tilted approximately 5• to earths orbit around the sun |
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Solar eclipse |
Occurs whenever the shadow of the moon falls on earths surface, the moon is between the sun and the earth |
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Diameter of sun |
400 times than tat of the moon |
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Why is it bad to look at the sun |
Because the radiation from the sun can burn through your retina and blind you |
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Tides |
Gravitational force the moons gravity pulls on earth, the earths gravity pulls on the moon causing tides |
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Solar system in order |
Sun, mercury, Venus, earth, mars, asteroid belt, Jupiter, Saturn, Uranus, Neptune |
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Comets |
•originate from the Kuiper belt •Pluto is made of ice and rock •oort cloud •blue tail called ion tail cuz the gases have been ionized by the suns radiation •tail made up of gases called gas tail |
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Asteroids, meteoroids, meteors, meteorites |
Asteroid •small •non spherical •believed to be debris left over from the formation of the solar system •ceres 100km wide •promoted to dwarf planet ---------------------------------------------- Meteoroids •piece of rock moving through space •rocky chunks that have broken off of asteroids and planets •when colliding with earths atmosphere they burn up due to atmospheric friction •this forms meteors ---------------------------------------------- Meteors •a meteoroid that hits earths atmosphere and burns up ---------------------------------------------- Meteorites •is a meteoroid that is large enough to pass through earths atmosphere without totally getting burned up ---------------------------------------------- |
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What happened after space shuttle Columbia |
To prevent an accident like this from happening again, MD robotics developed an extension to the Canadarm, includes a laser camera and is used to inspect the whole shuttle for Danegeld before the shuttle returns to earth |
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What robot was invented after Columbia |
Dextre (special purpose dexterous manipulator) two armed robot that does simple task like changing batteries and cleaning |
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Reflecting telescope |
Uses mirror to collect the light from an object |
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Refracting telescopes |
Uses lenses to collect light from an object |
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Non optical telescopes |
Detect non visible radiation cuz radio waves can penetrate clouds |
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How the sun is formed |
1. As a star forming nebula collapses and contrasts, the gas compresses 2. The temperature of the protostar increases because of the compression 3. When the temperature reaches around 10,000,000*c nuclear fusion begins 4. During nuclear fusion hydrogen nuclei combine to form helium nuclei 5. Once fusion process begins, the pro star starts to consume the hydrogen fuel 6. Helium from nuclear fusion begin to build up in the pro stars core 7. When gravity and pressure are balanced the result is a stable star |
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Sun spots |
An area of strong magnetic fields on the photosphere and are about 4500*c |
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Solar flares |
Can occur where there are complex groups of sun spots
Is an event in which magnetic fields explosively eject intense streams of charged particles into space |
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Doppler effect |
The change in frequency of a light source due to its motion relative to an observer also the change in pitch of a sound |
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Redshift |
The effect in which objects moving away from an observer have their wavelengths lengthened toward the red end of the visible spectrum |
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Redshift |
The effect in which objects moving away from an observer have their wavelengths lengthened toward the red end of the visible spectrum |
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Blueshift |
The effect in which objects moving toward an observer have their wavelengths shortened toward the blue end of the visible spectrum |
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Statements in order |
The Big Bang happened The earliest stars formed The Milky Way galaxy formed The sun and solar system formed The cosmic microwave background radiation cooled to about -279*c |
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Which galaxy is the oldest |
Elliptical |
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What led William Herschel to conclude that the sun is part of a huge galaxy of stars |
Using one of his best telescopes he was able to break up fuzzy regions of the Milky Way into individual stars |
