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Machines & Work
unit f2 definitions!!
Question | Answer |
---|---|
The rsult of a force causes an object to move | WORK |
Any device that changes the amount of force applied to an object, the direction of the force, or both | MACHINE |
A simple machine having an arm that moves around a fixed point | LEVER |
The fixed point in a lever | FULCRUM |
Is a part on which a person or another machine applys force | EFFORT ARM |
The part of a lever that applies a force on the object | RESISTANCE ARM |
A wheel that has a groove on its edge | PULLEY |
A machine that has a central pivot around which a wheel moves | WHEEL & AXLE |
Any flat sloping surface | INCLINED PLANE |
A simple machine made of 1 or 2 inclines | WEDGE |
An inclined plane wrapped around a cone or cylinder | SCREW |
A device made up of 2 or more simple machines | COMPOUND MACHINE |
The ratio of the work that comesout of a machine to the work put into that machine | EFFICIENCY |