science(chapter3)
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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| the force that ttwo surfaces exert on each other when they rub against each other | friction
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| sliding friction (example) | friction that occurs when one one solid surface slides over another
(sliding a plate across the table)
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| fluid friction | friction that occurs when an object moves through a fluid
*bugs swimming through air*
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| rolling friction | friction that occurs when an object rolls over a surface.
*a ball rolling sown the hill*
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| static friction | friction that acts between objects that aren't moving
*trying to move a couch,but dont have enough force*
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| the attractive force between object; the force that moves objects down hill | gravity
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| mass | a measure of how much matter is in an object.
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| the tendency of an object to resist change in motion | Inertia
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| the state at which one object distance from another is changing | motion
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| a place of object used for comparison to determine if an object is in motion. | reference point
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| the distance an object travels per unit (calculation: S=distance/time) | speed
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| the overall rate of speed which an object moves calculated by dividing the total distance an object travels by total time | average speed
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| the speed of an object at one instant of time | instantaneous speed
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| the steepness of a graph line; the ratio of the vertical change (the rise) to the horizontal change(run) | slope
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| the rate at which velocity changes | acceleration
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| the combination of all the forces on an object | net force
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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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