CH.26 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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Velocity | the speed and direction of a moving object
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Force | a push or a pull
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Net Force | combination of all forces acting on an object
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Balanced Forces | Two or more forces whose effects cancel each other out and do not change the motion of an object.
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Unbalanced Forces | two or more forces acting on an object that don't cancel, and cause the object to accelerate.
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Newtons First Law of Motion | states that if the net force acting on an object is zero, the object will remain at rest or move in a strait line with a constant speed
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Friction | force that acts to oppose sliding between two surfaces that are touching.
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Acceleration | the change in velocity divided by the time over which the change occurred.
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Weight | a measurement of force that depends on gravity measures in newtons.
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Newton's second law of motion | states that an object acted upon by a net force will accelerate in the direction of the force will accelerate equal the net force divided by the object's mass.
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Center of mass | point in a object that moves as if all of the object's mass were concentrated in that point.
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Newtons third law of motion | states that forces always act in equal but opposite pairs.
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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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