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Gravity & Waves

QuestionAnswer
attractive having the tendency to pull other objects toward itself
force a push or pull that can change the motion of an object
gravity the force that causes objects with mass to attract one another
interacting objects objects that affect one another
mass a measure of how much matter is present in a substance
weight the heaviness of an object; the pulling force of gravity on mass = weight
wave a rhythmic disturbance that moves through a medium or vacuum
sound energy a form of energy that is made by vibrations and requires a medium (air, water, or solids) to travel
trough the lowest part of a wave
vibration rapid movement back and forth
wavelength the distance between an two corresponding points on a wave, such as from crest to crest
crest the highest part of the wave
amplitude the height of a wave from the origin to the crest
frequency the number of wave cycles that pass a given point per unit of time
longitudinal wave a wave where the particles in the material vibrate back and forth in the same direction that the wave is moving (like compressing and pulling a slinky
transverse wave a wave where the particles of the medium move up and down at a right angle to the direction the wave travels.
medium the material through which a wave travels (air, space, solids, liquids, etc.)
sound waves waves of energy made by vibrations; require a medium to travel
 



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