Chapter 9-Science
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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What kind of motion does Acceleration refer to? | Increasing Speed, Decreasing Speed, and Changing direction
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The rate at which velocity changes is __________. | acceleration
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A decrease in speed is sometimes called | Deceleration or negative acceleration
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a type of motion where objects change direction but not speed is called | circular motion
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To determine acceleration of an object moving in a straight line, you must calculate | the change in speed per unit of time
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When a graph shows speed versus time as a slanted straight line the acceleration is | constant
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A graph of distance versus time for an accelerating object is | curved
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An object is in motion | when its distance from another object changes
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What is a reference point? | a place or object used for comparison to determine whether something is in motion.
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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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