Physical Science-chapter 2
Terms
undefined, object
copy deck
- crystalline solid
- solid made up of crystals
- property
- characteristic of matter
- vaporization
- change of a liquid to a gas
- volume
- amount of space an object takes up
- phase
- state in which matter can exist: solid, liquid, gas, plasma
- plasma
- high energy phase of matter; rare
- chemical reaction
- chemical changes in which substances are combined or mixed to form new substances with different properties
- freezing point
- temperature at which a substance changes from a liquid to a solid
- weight
- response of mass to the pull of gravity
- condensation
- change of a gas to a liquid
- Charles's Law
- states that the volume of a gas varies directly with the temperature of the gas
- gas
- matter with no definite shape or volume; particles move freely
- Boyle's Law
- states that the volume of a gas varies inversely with the pressure of the gas
- newton
- metric unit of weight
- density
- mass per unit volumes of a substance; m/v
- freezing
- change of liquid to a solid
- melting point
- temperature at which a substance changes from a solid to a liquid
- solid
- matter with definite shape and volume
- general properties of matter
- mass, weight, volume, density
- heat
- energy that causes the particles of matter to move faster and farther apart
- chemical property
- property that describes how a chemical changes into a new substance; flammability & ability to help something burn
- viscosity
- resistance of a liquid to flow
- evaporation
- vaporization that takes place at the surface of a liquid
- matter
- anything that has mass and volume; what the world is made up of
- sublimation
- change from a solid directly into gas
- boiling point
- temperature at which a substance changes from a liquid to a gas
- inertia
- resistance of an object to changes in its motion; tendancy to remain at rest or in motion unless acted on by an unbalanced force
- specific gravity
- comparison or ratio of the mass of a substance to the mass of water
- melting
- change of a solid to a liquid
- boiling
- process in which particles inside a liquid and on the surface change to a gas
- physical property
- general properties of matter that can be changed without changing the identity of the substance
- crystal
- solid in which particles are arranged in a regular, repeating pattern
- chemical change
- process by which a substance becomes a new and different substance; burning, respiration, digestion, photosynthesis, rust
- flammability
- ability to burn
- mass
- amount of matter in an object
- liquid
- matter with no definite shape but with definite volume; particles are close together but free to move
- gravity
- force of attraction between all objects in the universe
- physical change
- change in which physical properties if a substance are altered but the substance remains the same kind of matter
- amorphous solid
- solid that loses its shape under certain conditions; sealing wax, silicone rubber, glass, tar
- phase changes
- melting, freezing, vaporization, condensation, sublimation