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Science flash cards

Flashcards of a little bit of everything from each unit in the first chapeters

TermDefinition
science exploration process used to gain knowledge and predict natural occurrences
standard exact quantity that people use to compare measurements
length straight line distance between two points
density mass per unit volume of material
motion a change in an object's position relative to a reference point
velocity the speed of an object in any given direction
coefficient friction measure of stickiness between two surfaces
newton's 3rd law every action has an equal an opposite reaction
Law of conservation of energy under ordinary circumstances, energy is neither created or destroyed, energy can change form though
mechanical energy sum of all kinetic energy, potential energy, and gravity potential energy of all the objects in a system
machine a device that changes force or increases motion from work
efficiency ratio of output to input work
mechanical advantage numbers of times a machine multiplies input force
thermal energy the sum of the kinetic energy and the potential energy of all the particles that make up an object
electroscope a device that can detect electric charge
magnetic domains groups of atoms with aligned magnetic poles
fission process of splitting u-235 atoms to produce thermal energy
wave undulation or disturbance that transfers energy, matter can be displaced in a wave but it returns to it original position
supersonic faster that the speed of sound
photon massless bundle of energy that behaves as a particle
gamma rays electromagnetic waves with wavelength shorter than about 100-trillionths of a meter
hologram a complete three dimensional photographic image of an object made by using lasers
heat of fusion then energy required to change a substance from a solid to liquid
mixture matter composed of two or more substances that can be separated by physical means
Created by: Isaac.fouts
Popular Physical Science sets

 



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