unit 4 lessons 1 and 2
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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| friction | is a force that resists the movement of one surface past another.
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| gravity | is the force of attraction that exists between any two objects.
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| force | is a push or pull that acts on an object
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| speed | the distance and object that moves in an given time.
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| inertia | the tenacity for an object to remain at rest or in motion
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| weight | is the force caused by the gravitational attraction of the Earth
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| velocity | a change in the speed or direction or an moving object
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| energy | the ability to cause motion to change
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| acceleration | is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater amount of force needed (to accelerate the object).
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| motion | the action or process of moving or of changing place or position.
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| drag | to draw with force, effort, or difficulty; pull heavily or slowly along; haul
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| work | exertion or effort directed to produce or accomplish something
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| mass | a body of coherent, usually of indefinite shape and often of considerable.
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| momentum | force or speed of movement
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| pressure | the exertion of force upon an surface by an object
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| direction | the line along which anything lies, faces, moves.
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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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