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L1 vocabulary
Question | Answer |
---|---|
Closely packed particles cause matter to have a definite shape and definite volume. | Solid |
Particles form a regular repeating pattern called crystals. Example: salt, sugar, and snow. | Crystalline solids |
Particles not arranged in a repeating pattern. Example: Glass, plastic, and rubber. | Amorphous solids |
Particles are free to move so a liquid has a definite volume but no definite shape. | Liquid |
An inward force, or pull among the molecules in a liquid that brings the molecules on the surface closer together. | Surface tension |
A liquids’s resistance to flowing. Example: Honey has a high viscosity. | Viscosity |
Particles are able to move and spread out filling all space available, thus gases has no definite shape or definite volume. | Gas |
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. | Pressure |
The higher the temperature the faster particles moving. | Temperature |
When a solid changes to a liquid | Melting |
The temperature at which a substance melts. | Melting point |
When a liquid changes to a solid | Freezing |
The temperature when a substance freezes. | Freezing point |
When a liquid changes to a gas | Vaporization |
Takes place only on the surface of the liquid. | Evaporation |
When vaporization occurs both below the and at the surface. | Boiling |
Temperature at which a liquid boils. | Boiling point |
When a gas changes to a liquid. | Condensation |
When a substance changes straight from a solid to a gas. | Sublimation |
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. | Charles’s Law |
As one amount increases, another amount increases at the same rate. | Directly proportional |
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. | Boyle's Law |
When the value of one variable increases, the other decreases. | Inversely proportional |