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Topic 4 vocab

Physics Vocabulary

TermDefinition
Watt (W) The SI unit of power; a derived unit equivalent to one joule per second: 1 W = 1 J/s
Spring Potential Energy The potential energy held in an elongated spring.
Work Work is done on an object when a force displaces the object.
Conservation Of Energy n any transfer of energy among objects in a closed system, the total energy of the system remains constant.
Potential Energy Energy resulting from the position or state of an object.
Spring Constant The constant of proportionality in the equation for the force required to stretch or compress a spring: .
Vertical Velocity A vector quantity that represents the vertical speed and direction of motion of an object.
Gravitational Potential Energy When work is done on an object by moving it against an gravitational field, the objects acquires gravitational potential energy.
Kinetic Energy The energy that an object possesses because of its motion.
Vertical Displacement A vector quantity that represents the vertical length and direction of a straight line path of motion of an object from its starting point to its finishing point.
Power Power is the time-rate of doing work.
Horizontal Velocity The horizontal vector component of the velocity of an object.
Heat The energy that is transferred from a warm body to a cold body because of the temperature difference between them.
Projectile Motion The motion of an object projected by a force and continuing in a path produced by the action of the projecting force and gravity.
Spring An elastic body, such as a coil of metal, that recovers its shape after being compressed, bent, or stretched.
Vertical Displacement A vector quantity that represents the vertical length and direction of a straight line path of motion of an object from its starting point to its finishing point.
Total Mechanical Energy The sum of the kinetic and potential energies in a mechanical system.
Vector Components A single vector may be resolved (broken down) into an unlimited number of components such that the sum of the components is equal to the original vector.
Horizontal Component Usually we resove a vector into two components perpendicular to each other, one on the x-axis the other on the y-axis The horizontal component of a vector quantity represents projection on the x-axis.
Internal Energy The total energy of a system or object, including its potential energy and its kinetic energy.
Mechanical Energy A form of energy resulting from physical changes that encompasses both kinetic and potential energy.
Horizontal Displacement A vector quantity that represents the horizontal length and direction of a straight line path of motion of an object from its starting point to its finishing point.
Joule (J) The SI unit of work and energy; it is a derived unit.
Power Power is the time-rate of doing work.
Created by: jwhitm5
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