1st sem. vocab.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| HR Diagram | A graph that shows the heat of a star ,relative to it's magnitude.
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| Main Sequence Star | A new star that that creates heat and pressure from fusion that balances the attraction due to gravity.
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| White dwarf star | A star that contracts because it used up all it's helium.
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| Red giant star | Brightstars on the upperright of the Hr diagram.
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| Elliptical galaxy | Football shaped Galaxies.
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| irregular galaxy | Galaxies that don't fit into other classifications.
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| spiral galaxies | made up of bright stars and dust
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| light year | distance light travels in a year
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| asteroid | piece of rock similiar to the material that formed into planets.
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| comet | composed of dust and rock
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| meteor | a meteoroid that has entered the earth's atmosphere.
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| meteorite | a mass of metal that reached the earth:a fallen meteroid.
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| meteoroid | pieces of metal.
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| Big bang theory | a theory that suggests that the universe was created from a massive explosion
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| doppler effect (red shift/blue shift) | change in frequnecy and wave length
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| steady state theory | the universe has always been expanding
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| oscillating theory | universe is expanding
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| parallax | a recieved change in the location of an object
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| absolute magnitude | allows overall brightness of object
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| apparent magnitude | measurement of an objects brightness
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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