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ch 5 vocab so

vocab

QuestionAnswer
work transfer of energy that occurs when a force makes an object move measured joules.
power amount of work done or the amount of energy transferred divided by the time required to do the work or transfer the energy measured in watts.
machine device that makes doing work easier by in creasing the force applied to an object changing the direction of an applied force or increasing the distance over which a force or increasing the distance over which a force can be applied.
input force the force that is applied to the machine.
output force the force applied by the machine.
mechanical advantage ratio of the output force exerted by a machine to the input force applied to the mechine.
efficiency ratio of the output work done by the machine to the input work done on the machine expressed as a percentage
simple machine device that makes doing work easier by increasing the force applied to an object changing the distance over which a force can be applied
pulley simple machine that consists of a grooved wheel with a rope chain or cable running along the grove can be either fixed or movable.
wheel and axle simple machine that consists of a shaft of axle attaached to the center of a larger. wheel so that the wheel rotate togather
inclined plane simple machine that consists of a sloping surface such as ramp that reduces the amount of force needed to lift something by increasing the distance over which the force is applied.
screw simple machine that consists of an inclined plan wrapped in a spiral around a cylindrical post.
wedge simple machine that that is an inclined plane with one or two sloping sides
compound machine machine that is a combination of two or more simple machines
Created by: summerowens
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