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Physics, 15-16, elements

Terms in this set (35)

The name for a substance formed by only one kind of atom; it is what's listed on the periodic table
Element
The name for a substance formed by only two or more different kinds of atoms, combined in a fixed ratio
Compound
The term for which the different materials can be easily distinguished often these different substances are NOT evenly distributed/ mixed either
Heterogeneous
The term for a mixture in which there are large particles that appear to hangers and spend in solution rather than settle to the bottom gelatin and milk are samples of this mixture
Colloid
The term for an energy change in a material that doesn't change the identity of it; the art Adams are the same before and after this change, and in the same fixed ratio. Examples are changes and shit shape or phase state
Physical change
Which of the following is an example of a chemical change
Burning
Which of the following is an example of a physical change
Boiling water ripping paper and mixing salt into water
Which of the following is in the phase state which definite volume but no definite shape
Liquid
Which of the following is not a compound
Hydrogen
Which of the following is not part of an atom the building block of matter
Quastitron
ASA metric unit used to measure volume of a mass object it is considered derived unit
Liter
A Si metric unit used to measure the amount of matter in an object, it is a basic unit
Gram
The amount of matter in an object is
mass
Describe what the Tyndall Effect include what type of mixture it helps identify
The Tyndall effect is the scattering of light beam as it passes through a colloid. This effect usually helps identify colloids like milk
Describe what is meant by the conservation of mass regarding chemical changes/reactions
Law of conservation of mass states that the mass of all substances present before a chemical change equals the mass of all the substances remaining after the change
Describe the process of distillation; include whether it is a chemical change or physical change
Distillation is a process that can separate two substances in a mixture by evaporating a liquid and recondensing it's vapor. It is a physical change
List 4 physical properties you could use to describe a liquid
Color, melting point, boiling point, and temperature
assumes matter is made of small particles in constant motion
kinetic theory
The force which support objects in fluids
Buoyant force
The temperature at which a substance changes from a solid to a liquid
melting point
Equals F/A
Pressure
For of matter found in lightning bolts, nuclear reactors, and stars
Plasma
The reason a car's dashboard might crack when exposed to high temperatures
Thermal expansion
Defined as the point at which a liquid's vapor pressure equals the atmospheric pressure
Boiling point
SI unit of pressure
Pascal
Energy released as a gas change to a liquid
Heat of vaporization
property of fluids which enables ships and balloons to float
buoyancy
random spreading of molecules
diffusion
A fluid's resistance to flow
Viscosity
All matter is made of small particles that are in motion
kinetic theory of matter
If the volume of a container of gas is decreased the pressure on the gas will increase if the temperature does not change
Boyle's Law
The volume of a gas increases with increasing temperature provided the pressure does not change
Charles's Law
The buoyant force of an object in a fluid is equal to the weight of the fluid the object displaces
Archimedes' principle
Pressure applied to a fluid is transmitted unchanged throughout the fluid
Pascal's principle
As the velocity of a fluid increases, the pressure exerted by the fluid decreases
Bernoulli's principle
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