8th Grade Science Test: Waves & Universe
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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Universe | a collection of galaxies
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Galaxy | a collection of solar systems, gas, ash; dust
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Light Year | distance light travels in 1 year
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Big Bang Theory | The expansion of a singularity of energy led to the creation of our universe
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Red Shift | a drag of red: shows moving away
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Blue Shift | a drag of blue; shows moving towards
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Spiral Galaxy | a galaxy with arms coming off a central body
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Elliptical Galaxy | football shaped galaxy
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Irregular Galaxy | no defined shape
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Subscript | small number on lower right
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Wavelength | distance between crests or troughs
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Frequency | how often wavelengths repeat in 1 second
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Visible light | combination of RoyGBiv
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Infrared Light | light outside the visible spectrum. Heat sensing goggles pick this wave up
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Speed | distance traveled in time
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Velocity | Speed in a certain direction
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Acceleration | change in velocity
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Newton's First Law | an object at rest stays at rest or an object in motion stays in motion until an outside force is applied
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Newton's Second Law | Force=Mass x Acceleration
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Newton's Third Law | For every action there is an equal and opposite reaction
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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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Created by:
TeresaGill@email.com
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