Atmospheric pressure: The force exerted by the weight of air molecules.
average: (scientific term) A term for the arithmetic mean, which is the sum of a set of numbers divided by the size of that group.
shaft: (in mathematics) A line across or below a graph that is labeled to explain the meaning and units of measurement of the graph.
cavity: (in geology or physics) A large, hard, pocket-like structure.
compression: To press one or more sides of something to reduce its volume.
data: Facts or statistics collected for analysis, but not necessarily organized in a meaningful way. In the case of digital information (the type stored in a computer), these data are usually numbers stored in binary code, represented as a string of 0s and 1s.
diameter: The length of a straight line that passes through the center of a circular or spherical object, starting at one end and ending at the opposite end.
frequency: The number of times some periodic phenomenon occurs within a specified time interval. (In physics) The number of wavelengths that occur in a particular time interval.
Geometry: The mathematical study of shapes, especially points, lines, planes, curves, and surfaces. Geometry can also refer to the defined shape of something (such as a highly spherical geometric shape).
GlassGlass: A hard, brittle substance made from silica, a mineral found in sand. Glass is usually transparent and fairly inert (chemically unreactive). Aquatic organisms called diatoms make shells out of glass.
Hertz: How often something (such as a wavelength) occurs, measured in cycles per second.
Horizontal: A line or surface that runs from left to right, like the horizon we see when looking into the distance.
information: (as opposed to data) A fact provided about something or someone, or a trend learned, often as a result of the study of data.
molecule: A group of electrically neutral atoms that represents the smallest amount of a chemical compound. Molecules can be made up of a single type of atom or different types of atoms. For example, oxygen in the air is made up of two oxygen atoms (O2), whereas water consists of two hydrogen atoms and one oxygen atom (H2O).
Physics: The scientific study of the nature and properties of matter and energy. Classical physics describes the nature and properties of matter and energy based on explanations such as Newton’s laws of motion. Quantum physics, a later field of study, is a more precise way of describing the motion and behavior of matter. Scientists who work in these fields are called physicists.
pitch: (in acoustics) A term musicians use to describe the frequency of a sound, how high or low it is, determined by the vibrations that produce it.
plastic: Any of a set of materials that can be easily transformed or a synthetic material made from polymers (long strings of some component molecules) that tend to be lightweight, inexpensive, and resistant to degradation. (adjective) A material that can adapt by changing its shape and sometimes its function.
Pressure: A force applied uniformly over an entire surface, measured as force per unit area.
range: The complete extent or distribution of something. For example, the range of a plant or animal is the area in which it naturally occurs. (In mathematics or measurement) The range over which a value varies (such as maximum to minimum temperature). Also, the distance over which something can be reached or perceived.
resonance: (in physics) A loud, clear sound, or the quality of making sound by vibrating other things; or a term used to refer to a system in which an external stimulus causes some large vibration to occur whose frequency matches that of the stimulus.
Resonate: It produces frequencies that resonate like a ringing bell and radiate distinct tones and energies.
Resonator: (in physics) Something that traps and resonates energy at a particular frequency. See resonance.
Sound waves: A wave that transmits sound. Sound waves consist of alternating bands of high and low pressure.
trough: (in physics) The trough or lowest point of a wave.
vertical: A term used to describe the direction of lines or surfaces running up and down, such as the vertical pole of a streetlight, as opposed to horizontal, which runs parallel to the ground.
Source: www.snexplores.org
