Forces
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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| force | any push or pull that causes an object to move, stop, or change speed or direction
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| friction | a force that opposes, or acts against motion when two surgaces rub against each other
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| magnetism | the force of attraction between magnets and magnetic boxes
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| gravitation | the force that pulls all objects int he universe toward one another
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| balanced forces | equal in size and opposite in direction
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| unbalanced forces | occurs when one force is greater than its opposite force
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| net force | the value of combined forces on an object
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| work | the use of force to move an object through a distance
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| power | the amount of work done for each unit of time
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| machine | something that makes a task easier by changing the size or direction of a force or the distance over which the force acts
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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:
brtouchet
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