Relier Pairs Physics Chapter 10 and 11Version en ligne Some vocabulary review for chapters ten and eleven par Hannah Quackenbush 1 Efficiency 2 Effort Force 3 Energy 4 Machine 5 Ideal Mechanical Advantage 6 Wheel and Axle 7 Gravitational Potential Energy 8 Screw 9 Elastic Potential Energy 10 Resistance Force 11 Lever 12 Inclined Place 13 Mechanical Energy 14 Wedge 15 Work 16 Law of Conservation of Energy 17 Reference Level 18 Rotational Kinetic Energy 19 Compound Machine 20 kinetic energy 21 Mechanical Advantage 22 Pulley simple machine consisting a wheel which is fastened to an axle to apply torque beam or rigid rod pivoted at a fixed hinge or fulcrum triangle shaped tool; can be used to separate two objects or portions of objects, lift up an object, or hold an object in place force exerted by the machine the ratio of output work to input work energy resulting from motion states that in a closed, isolated system, energy is not created or destroyed, but rather, is conserved the position where gravitational potential energy is defined as zero the ratio of resistance force to effort force a wheel with a grooved rim around which a cord passes equal to the displacement of the effort force, divided by displacement of the load flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load converts rotational motion to linear motion, and a torque to a linear force the sum of kinetic and gravitational potential energy of a system force exerted by a person on a machine a machine consisting of two or more simple machines that are connected so that the resistance force of one machine becomes the effort force of the second machine eases the load by changing either the magnitude or the direction of a force to match the force to the capability of the machine or the person product of the force and the object's displacement ability of an object to produce a change in itself or the world around it energy that is stored in the system as a result of gravitational force between the object and Earth the potential energy that may be stored in an object, such as a rubber band, as a result of its change in shape kinetic energy of an object, proportional to the object"s moment of inertia and square of its angular velocity
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