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SCI-7 U4

All Words

QuestionAnswer
Energy The ability to do work.
Potential Energy The stored energy that an object has due to its position or chemical make-up.
Kinetic Energy The energy associated with an object in motion.
Mechanical Energy The sum of kinetic and potential energy in an object that is used to do work.
Heat Energy The energy of the internal motion of particles of matter.
Chemical Energy The energy stored in the bonds between atoms.
Electromagnetic Energy The energy associated with moving charges.
Nuclear Energy The energy stored in the nucleus of an atom.
Energy Transfer The moving of energy to from one place to another place or the passing of energy from one object to another object.
Conduction The transfer of heat energy through a substance or from one substance to another by direct contact of molecules.
Convection The transfer of heat energy through fluids (liquids and gases) by means of convection currents.
Radiation The transfer of heat energy by waves through space.
Energy Conversion The process of energy changing from one form to another.
Wave A traveling disturbance that transmits energy through matter and space.
Vibration The back and forth movement of particles in opposite directions that return to their original positions.
Medium The matter or substance that a wave travels through.
Mechanical Wave A wave that requires a medium (a solid, liquid, or gas) to travel.
Electromagnetic Wave A wave that can be transmitted through a vacuum. A vacuum is an empty space that is free of matter.
Resting State The position of the medium or field before it is disturbed by a wave passing through it.
Crest The peak, or high point of the wave.
Trough The low point of the wave.
Amplitude The distance between the resting state and the crest, or the resting state and trough and an indication of the amount of energy carried by the wave.
Wavelength The distance from one crest of a wave to the next crest of the wave and represented by the Greek letter Lambda (λ).
Frequency The number of complete wave cycles per second. The unit of measure for this wave property is the Hertz (Hz). 1 Hz = 1 wave per second.
Transverse Wave A type of mechanical wave in which the motion of the medium is at right angles to the direction of the wave.
Longitudinal Wave A type of mechanical wave in which the motion of the medium is parallel to the direction of the wave.
Compression The space in a longitudinal wave where the particles of the medium are crowded together.
Rarefaction The space in a longitudinal wave where the particles of the medium are spread out.
Created by: susanmason
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