Chapter One Vocab. Physical Science
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Created by:
JLove1397 on November 17, 2010
Subjects:
chemistry and physical science
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32 terms
Terms | Definitions |
|---|---|
 Element | A substance in which all of the atoms have the same atomic number. |
| Compound | A material that consists of two or more substances that make use of the properties of each component. |
| Chemical Formula | The combination of the symbols of the elements in a definite numerical proportion used to represent molecules, compounds, radicals, ions, etc. |
| Electrolysis | The conduction of electricity through a solution that contians ions or through a molten ionic compound that will induce chemical change. |
| Kinetic Energy | A form of energy related to the motion of a particle. Formula: KE=1/2mv2. (the two is squared) |
| Potential Energy | Stored energy of the material as a result of it's position in an electric, magnetic, or gravitational field. |
| Normal Melting Point | The characteristic temperature, at 1 ATM, at which a material changes from a solid state to a liquid state. |
| Normal Freezing Point | The characteristic, temperature, a 1 ATM, which a material changes from its liquid state to its solid state. |
| Normal Boiling Point | The temperature at which the vapor pressure of the pure liquid equals 1 ATM. |
| Melting | Solid to Liquid |
| Freezing | Liquid to Solid |
| Vaporization | Liquid to Gas |
| Condensation | Gas to Liquid |
| Sublimation | Solid to Gas |
| Deposition | Gas to Solid |
| Pure Substance | A substance that contains only one kind of particle. |
| Solution | A homogeneous mixture of two or more substances. |
| Solvent | The substance in which a solute dissolves to form a solution. |
| Solute | The substance that dissolves in a solvent to form a solution. |
| Suspension | A heterogenous mixture that contains fine solid or liquid particles in a fluid that will settle out spontaneously. By shaking the container they will again be dispersed throughout the fluid. |
| Colloid | A mixture containing particles larger than the solute but small enough to remain suspended in thebcontinuous phase of another component. This is also called colloidal dispersion. |
| Heterogenous | Not consistent throughout the mixture. |
| Homogenous | Consistent throughout the mixture. |
| Tyndall Effect | The scattering of a light beam as it passes through a colloid. |
| Emulsion | A colloid or colloidal dispersion of one liquid suspended in another. |
| Composite | A solid heterogeneous mixture of two or more substances that make use of the properties if each component. |
| Texture | The characterisitics of the surface of a material, like how smooth, rough, or coarse it is. |
| Strength | The property of how well a material withstands the application of force. |
| Uniformity | The property of how conbsistent a material is throughout. |
| Elasticity | The property of a material to resist deformation and return to it's normal size or shape after force has been applied to it. |
| Bounce | The ability of an object to rebound to it's original position when dropped from a given height. |
| Malleability | The property of a material to be able to be hammered intro various shapes without breaking. |
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