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matter
| Term | Definition |
|---|---|
| Surface Tension: | An inward force, or pull among the molecules in a liquid that brings the molecules on the surface closer together. |
| Amorphous solids | particles not arranged in a repeating pattern. |
| Crystalline solids | particles form a regular repeating pattern called crystals. |
| Gas: | particles are able to move and spread out filling all space available, thus gases has no definite shape or definite volume. |
| Boiling Point: | Temperature at which a liquid boils. |
| Boiling | When vaporization occurs both below the and at the surface. |
| Evaporation: | takes place only on the surface of the liquid. |
| Viscosity: | A liquids’s resistance to flowing. |
| Pressure: | gas particles constantly collide with one another and the walls of their container. Pressure is the outward push divided by the area of the walls of the container. Pressure= Force/Area |
| Temperature: | the higher the temperature the faster particles moving. |
| Melting: | When a solid changes to a liquid |
| Melting point: | the temperature at which a substance melts. |
| Freezing: | When a liquid changes to a solid |
| Freezing point: | the temperature when a substance freezes. |
| Vaporization: | When a liquid changes to a gas |
| Condensation: | When a gas changes to a liquid. |
| Sublimation: | When a substance changes straight from a solid to a gas. |
| Charles’s Law | When the temperature of a gas at a constant pressure is increased the volume is increased, if the temperature is decreased then the volume is decreased. |
| Boyle's Law | When the pressure of a gas at a constant temperature is increased the volume is decreases, if the temperature is decreased then the volume is increases. |
| Directly proportional | as one amount increases, another amount increases at the same rate. |
| inversely proportional: | When the value of one variable increases, the other decreases. |
| solid | closely packed particles cause matter to have a definite shape and definite volume. |
| Reference Point | A place or object used for comparison to determine if something is in motion |
| Distance SI Unit: Meter | (measures the length of a path between two points) |
| Speed: | The distance an object moves per unit of time. |
| Average Speed | Calculate the total distance traveled by the total time. (Speed= Distance/Time) |
| Instantaneous Speed | The speed at which an object is moving at a given instant in time. |