Pulley
Efficiency
Wheel and Axle
Mechanical Advantage
kinetic energy
Rotational Kinetic Energy
Resistance Force
Law of Conservation of Energy
Effort Force
Gravitational Potential Energy
Machine
Inclined Place
Lever
Energy
Screw
Work
Reference Level
Wedge
Compound Machine
Elastic Potential Energy
Mechanical Energy
Ideal Mechanical Advantage
kinetic energy of an object, proportional to the object"s moment of inertia and square of its angular velocity
triangle shaped tool; can be used to separate two objects or portions of objects, lift up an object, or hold an object in place
a wheel with a grooved rim around which a cord passes
simple machine consisting a wheel which is fastened to an axle to apply torque
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
the ratio of resistance force to effort force
ability of an object to produce a change in itself or the world around it
the position where gravitational potential energy is defined as zero
flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load
force exerted by the machine
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
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
states that in a closed, isolated system, energy is not created or destroyed, but rather, is conserved
beam or rigid rod pivoted at a fixed hinge or fulcrum
product of the force and the object's displacement
energy resulting from motion
force exerted by a person on a machine
equal to the displacement of the effort force, divided by displacement of the load
converts rotational motion to linear motion, and a torque to a linear force
the ratio of output work to input work
the sum of kinetic and gravitational potential energy of a system
