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18 Cards in this Set
- Front
- Back
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gravitational potential energy |
is energy an object possesses because of its position in gravitational field.
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kinetic energy |
of an object is the energy that it possesses due to its motion
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mechanical energy |
is the sum of potential energy and kinetic energy
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conservation of energy |
states that the total energy of an isolated system remains constant—it is said to be conserved over time.
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work |
activity involving mental or physical effort done in order to achieve a purpose or result.
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power |
the ability to do something or act in a particular way, especially as a faculty or quality.
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simple machine |
any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
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lever |
a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.
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pulley |
is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt along its circumference.
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incline plane |
a plane inclined at an angle to the horizontal.a sloping ramp up which heavy loads can be raised by ropes or chains.
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wedge |
a piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.
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screw |
a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head, used to join things together by being rotated so that it pierces wood or other material and is held tightly in place
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wheel and axle |
simple lifting machine consisting of a rope that unwinds from a wheel onto a cylindrical drum or shaft joined to the wheel to provide mechanical advantage
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mechanical advantage |
s a measure of the force amplification achieved by using a tool,mechanical device or machine system.
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effort force |
In physics, resistance force is the force which an effort force must overcome in order to do work on an object via a simple machine.
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resistance force |
is the force which an effort force must overcome in order to do work on an object via a simple machine.
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effort distance |
The distance from the effort on a lever to the fulcrum.
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resistance distance |
between two vertices of a simple connected graph, G, is equal to the resistance between two equivalent points on an electrical network, constructed so as to correspond to G, with each edge being replaced by a 1 ohm resistance
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