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Phys Chap 6

terms from chapter 6 notes

QuestionAnswer
Energy is not a _____ thing
ability to do work or cause change energy
Unit for all types of energy Joule (J)
Result of force applied over a distance. (F*D) ____=Force * distance work
Stored energy do to position or condition potential energy
Potential energy do to the position of an object above the earth Gravitational Potential energy (GPE)
Kinetic energy is causing what? change in position
Energy of motion Kinetic
Type of mechanical energy from an object that can stretch or compress. Elastic PE
_____ energy can be both potential and kinetic Mechanical
Involves movement of matter, usually visible. You can see it at work. Mechanical energy
The sum of the KE of all the particles of an object Thermal Energy
Movement of thermal energy in and out of a system is heat
You measure thermal energy by measuring changes in temperature
Faster movement of particles means ____ heat and _____ energy more
Thermal energy is a type of _____ energy kinetic
Heat is not the same thing as thermal energy
Acoustic energy is kinetic and is the transmission of energy by a wave
This energy type involves back and forth motion acoustic
Back and for motion refers to _____ motion periodic
This type of energy is the ability to do work through the influence of a magnetic field. Magnetic
Magnetic energy is created by the attraction and repulsion of N and S poles
Any object that is conducting electricity also generates a magnetic field
Electromagnetic waves radiated by matter. Radiant energy
Radiant energy is generated by causing an electromagnetic field
Radiant energy is the only kind of energy that can travel through a vacuum
Radiant energy is the only energy that reaches earth from the sun
These are examples of electromagnetic energy (EM energy) light waves
Potential energy stored in chemical bonds chemical
Chemical energy is released when _____ breaks bonds
Example of chemical, potential energy food
Example of electrical energy battery
Example of mechanical energy baseball moving
Potential energy stored in the atom's nucleus nuclear
combining two nuclei fusion
splitting a large nucleus fission
Fiss... apart
Example of nuclear PE/KE energy nuclear bombs
fuse... together
Energy found in matter mass
Mass energy is the _____ source of potential energy greatest
Thermal energy and ____ are NOT the same thing. heat
In E=mc^2 the c stands for the speed of light
Which has greater GPE, a boy on top of a car or a boy on top of a house. boy on the house
Energy can never be created nor destroyed, only changed from one form to another Law of Conservation of Energy
The total energy entering the process equals the total energy that exists at the end of the process. Third Law of Thermodynamics
Energy In = Energy out
The amount of usuable energy produced divided by the amount of energy available before transformation efficiency
The position from which the distance is measured. (Example: height measured from the ground to the roof.) zero reference point
Decrease thermal energy is cooling
Gaining of thermal energy is heating
Acoustic energy is transmitted through particle oscillations
Particle oscillations are small vibrations
Electrical energy is caused by the lack, excess, or movement of electrons
Radiant energy ______ need matter to travel does not
Created by: D'Anne Cribb D'Anne Cribb on 2011-10-17



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