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Quarter 3 Review

Ch. 7, 8, 15, and 16

TermDefinition
Circuit Closed conducting loop through which an electric current can flow.
Conductor Material, such as copper wire, in which electrons can move easily.
Electric Current The net movement of electric charges in a single direction, measured in amperes.
Insulator Material in which electrons are not able to move easily.
Parallel Circuit Circuit in which electric current has more than one path to follow.
Series Circuit Circuit in which electric current has only one path to follow.
Alternating Circuit Electric current that reverses its direction of flow in a regular pattern.
Direct Circuit Electric current that flows in only one direction.
Chemical Change Change of one substance into a new substance.
Chemical Properties Any characteristic of a substance, such as flammability, that indicates whether is can undergo a certain chemical change.
Compound Substance formed from two or more elements in which the exact combination and proportion of elements is always the same.
Element Substance with atoms that are all alike.
Physical Change Any change in size, shape, or state of matter in which the identity of the substance remains the same.
Physical Properties Any characteristic of a material, such as size or shape, that you can observe or attempt to observe without changing the identity of the material.
Boyle's Law If you decrease the volume of a container of gas and hold the temperature constant, the pressure of the the gas will increase.
Charles's Law The volume of a gas increases with increasing temperature, as long as pressure does not change.
Pascal Principle Pressure applied to a fluid is transmitted throughout the fluid.
Bernoulli's Principle As the velocity of the fluid increases, the pressure exerted by the fluid decreases.
Archimedes Principle The buoyant force on an object is equal to the weight of the fluid displaced by the object.
Kinetic Theory Explanation of the behavior of molecules in matter, states that all matter is made of constantly moving particles that collide without losing energy.
Created by: LDinkins
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