Motion and 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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| Work | the use of force to move an object some distance in the direction of the force
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| energy | The ability to work
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| power | the rate at which work is done
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| kinetic energy | the energy of motion
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| potential energy | the energy an object has because of its position, condition, or chemical composition
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| mechanical energy | the energy possessed by an object due to its motion and position
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| machine | any device that helps people do work by changing the way work is done
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| mechanical advantage | the number of times the machine multiplies the input force
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| mechanical efficiency | a comparison of a machine's work output with the work input
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| lever | is a simple machine that has a ba that pivots at a fixed point
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| fulcrum | the fixed point of the lever
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| wheel and axle | a simple machine that is made of a wheel connected to a smaller cylindrical object, the axil
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| pulley | a simple machine that has a grooved wheel that holds a rope or a cable
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| inclined plane | a simple machine that is a straight, slanted surface.
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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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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:
TreReese
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