chap 3 less 1-3
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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| Motion | Its position changes relative to another object.
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| Reference point | A place or object used for comparison to determine if something is in motion.
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| When is an object in motion? | If it changes position relative to a reference point.
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| International system of distance. | The length of the path between two points.
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| Speed | The distance the object moves per unit of time.
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| How do you calculate speed? | Divide the distance the object travels by the amount of time it takes to travel that distance.
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| Average speed | Divide the total distance traveled by the total time.
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| Instantaneous speed | The speed at which an object is moving at a given instant in time.
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| How do you describe velocity? | When you know both the speed and direction of an object's motion.
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| Velocity | Speed in a given direction.
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| How do you graph motion? | A line graph in which you plot distance versus time.
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| Slope | The steepness of a line on a line graph.
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| Acceleration | The rate at which velocity changes.
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| What is acceleration? | Increasing speed, decreasing speed, or changing direction.
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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:
kwinkler
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