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Physical Science FINAL REVIEW

Mrs. Dallimore
A particle of nuclear radiation emitted from a decaying atomic nucleus; has a charge of 2+, an atomic mass of 4, and is the largest, slowest, and least penetrating form of radiation
Negatively charged particles that move around the nucleus of an atom
The rate at which electrical energy is converted to another form of energy (watts)
A negatively charged electron or positively charged positron emitted from a decaying atomic nucleus
A closed path through which electrons flow
The basic unit of energy and work.
A chemical equation that has the same number of atoms of each element on both sides of the equation
A type of wave where matter vibrates in the same direction the wave travels
The number of wave crests that pass a point during one second; expressed in hertz.
Thermal energy that flows from a warmer material to a cooler material.
The rate of change in velocity
A substance that produces hydroxide ions (OH-) in solution; these solutions have a pH over 7.
Strong temporary magnet made by inserting an iron core into a wire coil and passing an electric current through the coil.
The change of substances to different substances
A material that allows electrons to move easily through it.
Frictional force air exerts on a moving object/ acts opposite in direction to the object's motion
The highest point of a wave.
In compressional waves, the dense area of the wave
A combination of two or more simple machines.
A simple machine consisting of a sloping surface used to raise objects.
The temperature at which vapor bubbles form in a liquid and rise to the surface, increasing evaporation
Describes a solution made with water
The average mass of the mixtrue of an element's isotopes
The unit of measuring current, the rate of flow of electrons in a circuit
An increase or decrease in wave frequency, caused by motion of the source and/or motion of the observer; applies to all waves
Force exerted by every object in the universe on every other object. The amount of force depends on the masses of the objects and the distance between them.
Forces that are equal in size and opposite in direction
A push or pull one body exerts on another.
A material that does not allow heat or electrons to move through it easily.
Highly active elements in periodic table Group 17; they have seven electrons in their outer shells and readily combine with Group 1 elements.
A substance that produces hydrogen ions in solution; these solutions have a pH less than 7.