18 Motion and Momentum
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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| speed | the distance traveled divided by the time taken to travel the distance
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| average speed | divide the total distance traveled by the time taken
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| instantaneous speed | the speed of an object at one instant of time
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| velocity | the speed of the object and the direction of its motion
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| acceleration | the change in velocity divided by the time it takes for the change to occur
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| mass | the amount of matter in the object
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| inertia | the tendency of an object to resist change in its motion
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| momentum | a measure of how hard it is to stop an object; depends on its mass and velocity
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| law of conservation of momentum | the total momentum of objects that collide is the same before and after the collision
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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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