Work and machines
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 | Exerting a force on an object that causes the object to move
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| Joule | Work when you exert a force of 1N to move an object 1 meter
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| Power | Rate at which work is done
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| machine | device that allows you to do work in a way that is easier
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| input force | force you exert on a machine
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| output force | force the machine exerts
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| input work | input force times he input distance
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| output work | output force times the output distance
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| mechanical advantage | ratio of output force to the input force
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| efficiency | output work compared to input work
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| Inclined plane | flat, sloped surface
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| Wedge | device that is thick at one end and tapers to a thin edge at the other.
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| screw | incline plane around a cylinder
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| Lever | rigid bar that is free to pivot, or rotate, on a fixed point
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| fulcrum | fixed point that a lever pivots around
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| wheel and axel | two circular or cylindrical objects that rotate around a common axis
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| pulley | a groved wheel with a rope or cable wrapped around it
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| compound machine | machine utilizing two or more simple machines
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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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Created by:
SMoswald
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