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Semester 1 Units 1-4 Essential Vocabulary
Terms in this set (31)
the degree of compactness of a substance. Also stated as mass per unit volume.
Strength of Gravity
Determined by the mass of the two objects and the distance between them.
a unit of measure calculated from the quotient of an objects mass and the force of gravity pulling on said mass.
A force that acts or is exerted throughout a distance.
the measure of the average kinetic energy of a substance
Flow of Heat
Hot to Cold, High to Low
Absence of Heat
forces of attraction between molecules, influence the state of matter and how much energy it takes to change phase.
The force between electrically charged objects (like charges repel and opposite charges attract each other).
Conduction of Heat
Flow of heat through a solid medium. Heat is transferred via Kinetic Energy from atom to neighboring atoms throughout the object.
Heat Transfer through a fluid formed from the hot less dense fluid rising (floating) and colder less dense fluid sinking.
The emission of energy (waves) or mass (particles) 360 degrees from the source.
an increase in the size of a substance in response to an increase in the temperature of the substance
The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius
The unit for Energy, Work and Heat
the number of complete wavelengths that pass a point in a given time
Unit of measurement for frequency
Refraction of light
occurs when a wave of light passes from one medium to another and the light wave appears to be bent.
diffraction of waves
The energy of waves spread around objects or through gaps.
acid + base -> salt + water
A solution of known concentration is used to determine the concentration of another solution.
An observed change in the frequency of a wave when the source or observer is moving
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties
An atom or group of atoms that has a positive or negative charge.
the basic unit of a chemical element that still maintains the properties of that element
Electrons on the outermost energy level of an atom
number of protons
Atomic Mass Unit
a unit of mass that describes the mass of an atom or molecule
Contains nonmetals, 7 valence electrons in it's outermost energy level. Very reactive. Group 17
Mostly Gases at room temperature
located on the left side of the periodic table, specifically to the left of the metalloids.
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