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the rate at which velocity changes, an object accelerates if its speed changes, if its direction changes, or if both change
a change that occurs when one or more substances are changed into entirely new substances with different properties
the energy of a compound that changes as its atoms are rearranged to form a new compound; chemical energy is a form of potential energy
a property of matter that describes a substance based on its ability to change into a new substance with different properties
the process by which one or more substances undergo change to produce one or more different substances
the transfer of thermal energy from one substance to another through direct contact; conduction can also occur within a substance
a pure substance that cannot be separated or broken down into simpler substances by physical or chemical means
a wave in which the particles of the medium vibrate back and forth along the path that the wave travels
Newton's 2nd Law
the acceleration of an object depends on the mass of the object and the amount of force applied
the unreactive elements in group 18 of the periodic table; their atoms have 8 valence electrons except Helium
a measurement scale of hydronium ion concentration in a solution pH 7 neutral, less than 7 acidic, more than 7 basic
a change that affects one or more physical properties of a substance; many physical changes are easy to undo
a property of matter that can be observed or measured without changing the identity of the matter
the transfer of energy through matter or space as electromagnetic waves, such as visible light and infrared waves
a wave in which the particles of the waves medium vibrate perpendicular to the direction the wave is traveling
the distance between one point on a wave and the corresponding point on an adjacent wave in a series of waves
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