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Chpt. 13 Work And Machines By: Sivanah

Published on Nov 19, 2015

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PRESENTATION OUTLINE

POTENTIAL ENERGY

THE ENERGY STORED IN AN OBJECT OR MATERIAL

GRAVITATIONAL POTENTIAL ENERGY

GAIN IN POTENTIAL ENERGY WHEN OBJECT IS LIFTED UP AGAINST GRAVITY

KINETIC ENERGY

THE ENERHY OF A MOVING OBJECT

WORK

FORCE APPLIED TO AN OBJECT TIMES THE DISTANCE THE OBJECT MOVES

SIMPLE MACHINE

A MACHINE WITH FEW MOVING PARTS, MAKING IT EASIER TO DO WORK

EFFORT FORCE

THE FORCE APPLIED TO A MACHINE

RESISTANCE FORCE

THE FORCE THAT A MACHINE ACTS AGAINST

PULLEY

A GROOVED WHEEL THAT TURNS BY THE ACTION OF A ROPE IN THE GROOVE
Photo by vgm8383

WHEEL AND AXLE

A SIMPLE MACHINE MADE OF A HANDLE OR AXIS ATTACHED TO A WHEEL

INCLINED PLANE

A STRAIGHT SLANTED SURFACE THAT IS NOT MOVED WHEN IT IS USED

SCREW

AN INCLINED PLANE WRAPPED AROUND A CENTRAL BAR

WEDGE

ONE OR A COMBINATION OF TWO INCLINED PLANES

COMPOUND MACHINE

A COMBINATION OF TWO OR MORE MACHINES
Photo by Josh Kopel

EFFICIENCY

A RATIO OF WORK PUT IN AND THE WORK PUT OUT
Photo by thefixer

FULCRUM

THE PIVOT POINT OF A LEVER
Photo by Jrwooley6

MECHANICAL ADVANTAGE

THE NUMBER OF TIMES A MACHINE MULTIPLIES THE FORCE APPLIED