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an object that eases the load by either changing the magnitude or the direction of a force, but does not change the amount of work done
a unit of power
Energy stored in a spring. This is a latent form of energy, where the amount reflects the amount of energy that could be released as some other form.
Defined as the rate at which work is done, or the rate at which energy is transformed. It is measured in joules per second (J/s), or watts (W).
States that the net work done on an object is equal to the object’s change in kinetic energy
Consists of two or more simple machines put together
Potential energy is based on arbitrary reference energy. This energy can be chosen for convenience, and/or such that the ground relative to the observer is defined as zero
Energy associated with an object’s position in space, or height in relation to other objects. This is a latent form of energy, where the amount reflects the amount of energy that
the ratio of work output to the work input
A conserved scalar quantity associated with the state or condition of an object or system of objects. Roughly defined as the capacity for an object or system to do work
Indicates how “bouncy” or “stiff” a spring is. More specifically, k, is the constant of proportionality between the restoring force exerted by the spring, and the spring’
the unit of work and energy. 1 N • m or 1 kg • m2/s2.
the more the spring is displaced, the stronger the force that will pull toward the equilibrium position
the scalar product of the force acting on an object and the displacement caused by that force.
The sum of a system’s potential and kinetic energy
Energy associated with the state of motion
Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another

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