# Flashcards - Praxis Middle School Science: Work, Energy & Power

Flashcards - Praxis Middle School Science: Work, Energy & Power
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potential energy
In physics, potential energy is energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
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mechanical energy
In the physical sciences, mechanical energy is the sum of potential energy and kinetic energy
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kinetic energy
In physics, the kinetic energy of an object is the energy that it possesses due to its motion
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chemical energy
In chemistry, chemical energy is the potential of a chemical substance to undergo a transformation through a chemical reaction to transform other chemical substances
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chemical energy
In chemistry, chemical energy is the potential of a chemical substance to undergo a transformation through a chemical reaction to transform other chemical substances
kinetic energy
In physics, the kinetic energy of an object is the energy that it possesses due to its motion
mechanical energy
In the physical sciences, mechanical energy is the sum of potential energy and kinetic energy
potential energy
In physics, potential energy is energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
fixed pulley
A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taught cable, rope or belt along its circumference
system
A system is a set of interacting or interdependent component parts forming a complex/intricate whole
Power

Power is the amount of work done in the time it takes to do it.

work
In physics, a force is said to do work if, when acting there is a displacement of the point of application in the direction of the force

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