Chapter 2 Forces
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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| Force | a push or a pull
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| Unbalanced Force | net force does not equal zero, causes an object to change motion
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| Newton | the SI unit for the strength of a force
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| Balanced Force | net force of zero, the object's motion does not change
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| Net Force | total of all forces acting on an object
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| Friction | a force caused by two objects rubbing together
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| Gravity | a force that pulls objects toward each other
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| Free Fall | gravity is the only force pulling on a falling object
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| Newton's 1st Law | an object at rest will remain at rest and an object in motion will remain in motion
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| Newton's 2nd Law | acceleration depends on an object's mass and the net force acting on the object
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| Newton's 3rd Law | if one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object
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| Inertia | objects resist a change 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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Created by:
apetosa
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