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# Science 26-50

### mrs.kennons definitons

Compressed forced or closed together
Kinetic Theory of Matter a theory that matter is made of atoms and molecules which act like tiny particles that are always in motion
Evaporation the change of state from a liquid to a gas
Condensation the change of state from a gas to a liquid
Boiling the temperature at which a liquid boils
Vaporization change of a liquid or solid substance to a gas
Solidification change from a liquid or gaseous to a solid form
Sublimation the process in which a solid changes directly into a gas.
Deposition the process of changing of a gas to a solid without passing through an intermediate liquid phase
Melting the temperature at which a solid changes into a liquid
Law of Conservation of Mass mass cannot be created or destroyed
Law of Conservation of Energy energy cannot be created or destroyed
Pressure the amount of force exerted per unit area of a surface
Pascal the SI unit of pressure; equal to the force of 1N of an exerted over an area of 1M squared.
Buoyant Force the upward force that keeps on a object immersed in or floating on a fluid
Viscosity the resistance of a gas or liquid to flow
Archimedes' Principle the buoyant force on an object in a fluid is an upward force equal to the weight of the fluid that the object displaces
Pascal's Principle a change in pressure at any point in an enclosed fluid will be transmitted equally to all parts of the fluid
Hydraulic Device a device that uses pressure from one point to another
Bernoulli's Principle as the speed of a moving fluid increases, the pressure of the moving fluids decreases
Gas Laws the laws that state the mathematical relationships between the volume,temperature,pressure, and quantity, of a gas
Charles' Law for a fixed amount of gas at a constant pressure, the volume of the gas increases as the gas's temperature increases. Likewise the volume of the gas decreases as the gas's temperature decreases
Boyle's Law for a fixed amount of a gas at a constant temperature,the volume of a gas increases as the gas's pressure decreases. Likewise, the volume of a gas decreases as the gas's pressure increases
Gay-Lussac's Law the pressure of a gas increases as the temperature increases, if the volume of the gas does not change. The pressure decreases if the temperature decreases
Freezing the temperature at which a liquid changes into a solid
Created by: haleighj123