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Physical 1.2
Unit 1 Chap 2 Phases of Matter
Question | Answer |
---|---|
A liquid's resistance to flow | viscosity |
The amount of force exerted on an object per unit of area | pressure |
The mass per unit of volume of a substance | density |
An attractive force between two objects with mass | gravity |
The amount of matter in an object | mass |
The amount of space an object or substance takes up | volume |
The measure of the amount of gravity exerted on an object | weight |
The increase in the volume of a substance resulting from an increase in temperature | thermal expansion |
A solid with a random particle arrangement | amorphous solid |
The force of attraction between particles of the same kind | cohesion |
A solid whose particles are arranged in a regular, repeating three-dimensional pattern | crystalline solid |
The state in which matter has a definite shape and a definite volume | solid |
The attractive force between unlike substances that holds them together | adhesion |
The state in which matter has a definite volume but not a definite shape | liquid |
The greater force acting on particles at the surface of a liquid | surface tension |
The state in which matter does not have a definite shape or a definite volume | gas |
The changing of a substance from a gas to a liquid | condensation |
The changing of a substance from a gas directly to a solid | deposition |
The slow vaporization at the surface of a liquid | evaporation |
The changing of a substance from one phase to another | phase change |
A change in a substance's physical properties that does not change the type of matter in the substance | physical change |
The changing of a substance from a solid directly to a gas | sublimation |
The changing of a substance from a liquid to a gas (not necessarily slowly) | vaporization |
Properties that are unique to a particular substance and can be used to identify that substance | characteristic property |
characteristics that cannot be used to identify substances | noncharacteristic property |
A change that occurs when a substance changes into an entirely different substance with unique properties | chemical change |
The burning of substances | combustion |
A chemical change in which a substance combines with oxygen | oxidation |