8th Grade Science Chapter 16 Vocabulary
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 | DONE WHEN A FORCE PRODUCES MOTION PARALLEL TO THE DIRECTION OF THE FORCE.
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| POWER | DESCRIBES THE RATE AT WHICH WORK IS BEING DONE.
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| MACHINE | A DEVICE THAT MAKES WORK EASIER BY CHANGING THE SIZE OR DIRECTION OF THE FORCE APPLIED TO IT.
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| SIMPLE MACHINE | A MACHINE WITH ONLY ONE MOVEMENT AND IS THE SIMPLEST FORM OF TOOL.
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| COMPOUND MACHINE | A COMBINATION OF SIMPLE MACHINES.
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| EFFORT FORCE | THE FORCE YOU EXERT.
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| RESISTANCE FORCE | THE FORCE YOU MUST OVERCOME.
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| MECHANICAL ADVANTAGE | COMPARES EFFORT FORCE APPLIED TO A MACHINE TO THE RESISTANCE FORCE IT MUST OVERCOME.
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| INCLINED PLANE | A SLOPED SURFACE OR RAMP.
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| WEDGE | A MOVING INCLINED PLANE.
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| SCREW | AN INCLINED PLANE WRAPPED AROUND A SHAFT.
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| LEVER | A ROD OR PLANK THAT PIVOTS ABOUT A POINT.
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| FULCRUM | THE POINT WHERE A LEVER PIVOTS.
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| WHEEL AND AXLE | TWO RIGIDLY ATTACHED WHEELS THAT ROTATE TOGETHER.
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| PULLEY | A SURFACE, SUCH AS A WHEEL, THAT REDIRECTS FORCE USING A ROPE.
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| EFFICIENCY | THE ABILITY OF A MACHINE TO CONVERT WORK INPUT INTO WORK OUTPUT.
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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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