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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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| Newton's 2nd law | F=ma.
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| Newton's 3rd law | Every action has an equal and opposite reaction.
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| Force | A push or pull that causes an object to start moving, stop moving, or change direction.
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| Unbalanced force | When 2 or more forces are action on an object with unequal force.
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| Inertia | The resistance of an object to change.
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| Contact force | A force exerted between 2 objects by touching.
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| Newton's 1st law | An object at rest stays at rest, while an object in motion stays in motion (at a constant velocity) unless acted on by an outside unbalanced force.
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| Balanced force | When 2 or more forces are are action on an object at equal force.
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| Friction | A force created by 2 or more object rubbing against each other. It resists motion.
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| Magnetic force | An attraction created by electrically charged particles.
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| Gravity | A force of attraction between 2 masses.
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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.
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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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