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18 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Gravitational Potential Energy
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An object possesses because of its position in a gravitational field.
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Kinetic Energy
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Is an energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.
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Mechanical Energy
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Is the sum of potential energy and kinetic energy. It is the energy associated with the motion and position of an object.
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Conservation of Energy
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The law states that the total energy of an isolated system remains constant - it is said to be conserved over time.
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Work
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Work is done when a force that is applied to an object moves that object.
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Power
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Is the rate of doing work. It is equivalent to an amount of energy consumed per unit time.
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Simple Machines
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Is a mechanical device that changes the direction or magnitude of a force.
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Lever
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Is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum.
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Pulley
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A machine consisting of a wheel over which a pulled rope or chain runs to change the direction of the pull used for lifting a load.
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Incline Plane
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A sloping ramp up which heavy loads can be raised by ropes or chains.
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Wedge
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A piece of hard metal with two principal faces meeting in a sharply acute angle, for raising, holding, or splitting objects by applying a pounding or driving force, as from a hammer.
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Screw
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A metal fastener having a tapered shank with a helical thread, and topped with a slotted head, driven into wood or like by rotating, especially by means of a screwdriver.
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Wheel & Axle
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A simple machine consisting, in its typical form, of a cylindrical drum to which a wheel concentric with the drum is firmly fastened.
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Mechanical Advantage
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Is a measure of the force amplification achieved by using a tool, mechanical device or machine system.
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Effort ( input ) Force
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Is the force that moves an object over a distance by overcoming a resistance force.
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Resistance (output) Force
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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 (input) Distance
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The distance from the effort on a lever to the fulcrum.
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Resistance (output) Distance
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Between two vertices of a simple connected graph, G, is equal to the resistance between two equivalent points of an electrical network.
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