Chapter 12 Lesson 2
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| a push or a pull | force
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| force that opposes the mtoin of one object sliding over another | friction
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| a force of attraction that exists between objects with mass | gravity
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| a force that opposes the motion of an object through liquid or gas | drag force
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| forces that cancel each other out when acting together on a single object | balanced forces
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| forces that DO NOT cancel each other out when acting on a single object | unbalanced forces
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| the tendancy of an object to oppose a change in motion | inertia
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| an object at rest stays at rest will stay at rest; an object that is moving will contine moving | Newton's First Law of Motion
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| the kind of friction that is acting on a box that is being pushed across the floor | sliding
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| the kind of friction that is acting on wheels going down hill | rolling
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| the kind of friction that prevents any movment | static
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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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