closed conduction loop through which an electric current can flow.

the net movement of electric charges in a single direction, measured in amperes.

material, such as copper wire, in which electrons can move easily.

material in which electrons are not able to move easily.

law of conservation of charge

states that charge can be transferred from one object to another but cannot be created or destroyed.

change of one substance into a new substance.

any characteristic of a substance, such as flammability, that indicates whether it can undergo a certain chemical change.

any change in size, shape, or state of matter in which the identity of the substance remains the same.

law of conservation of mass

sates that the mass of all substances present before a chemical change equals the mass of all the substances remaining after the change.

explanation of the behavior of molecules in matter; states that all matter is made of constantly moving particles that collide without losing energy.

increase in the size of a substance when the temperature is increased.

ability of a fluid a liquid or a gas to exert an upward force on a n object immersed in the fluid.

particle, composed of quarks, inside the nucleus of an atom that has charge of 1+.

neutron particle, composed of quarks, inside the nucleus of an atom.

particles surrounding the center of an atom that have a charge of 1-

number of protons in an atom's nucleus.

sum of the number of protons and neutrons in an atom's nucleus.

ability of metals to be drawn into wires.

ability of metals and alloys to be rolled or hammered into thin sheets.

element that typically is a hard, shiny solid, is malleable, and is a good conductor of heat and electricity.

element that usually is a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and typically is not shiny.

element that shares some properties with metals and some with nonmetals.

any characteristic of a material, such as size or shape, that you can observe or attempt to observe without changing the identity.

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Semestre study guide

Semester study guide

Question	Answer
Circuit	closed conduction loop through which an electric current can flow.
electric current	the net movement of electric charges in a single direction, measured in amperes.
conductor	material, such as copper wire, in which electrons can move easily.
insulator	material in which electrons are not able to move easily.
law of conservation of charge	states that charge can be transferred from one object to another but cannot be created or destroyed.
chemical change	change of one substance into a new substance.
chemical property	any characteristic of a substance, such as flammability, that indicates whether it can undergo a certain chemical change.
physical change	any change in size, shape, or state of matter in which the identity of the substance remains the same.
law of conservation of mass	sates that the mass of all substances present before a chemical change equals the mass of all the substances remaining after the change.
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.
thermal expansion	increase in the size of a substance when the temperature is increased.
viscosity	a fluid's resistance to flow.
buoyancy	ability of a fluid a liquid or a gas to exert an upward force on a n object immersed in the fluid.
proton	particle, composed of quarks, inside the nucleus of an atom that has charge of 1+.
neutron	neutron particle, composed of quarks, inside the nucleus of an atom.
electron	particles surrounding the center of an atom that have a charge of 1-
atomic number	number of protons in an atom's nucleus.
mass number	sum of the number of protons and neutrons in an atom's nucleus.
ductile	ability of metals to be drawn into wires.
malleable	ability of metals and alloys to be rolled or hammered into thin sheets.
metal	element that typically is a hard, shiny solid, is malleable, and is a good conductor of heat and electricity.
nonmetals	element that usually is a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and typically is not shiny.
metalloids	element that shares some properties with metals and some with nonmetals.
Physical property	any characteristic of a material, such as size or shape, that you can observe or attempt to observe without changing the identity.

Created by: crodriguez98

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