for 6th grade science in Texas
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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newton | the unit used to measure force
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net force | the force that results from combining all the forces exerted on an object
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unbalanced forces | occur when the net force on an object is not equal to zero; this causes motion to occur
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balanced forces | occur when the net force on an object is equal to zero
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friction | a force that opposed motion between two objects that are touching
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sliding friction | the friction that occurs when two objects are moving directly against each other; ex. an eraser moving across a desk
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rolling friction | friction between an object with wheels and another surface; usually less than sliding friction; ex. skateboard
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fluid friction | opposes the motion of objects travelling through fluids like liquids and gasses; usually less than sliding friction; ex. swimming
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static friction | a force that keeps an object from moving; ex. push a book and it doesn't move
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lubricants | substances that are applied to surfaces to reduce the friction between objects; ex. oil, wax, grease
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fluids | liquids such as water and milk and gasses such as air and helium
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gravitational force | all objects have one; depends on the mass of the object
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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:
bwilliamsscience
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