Physics - The State of Matter
Most stars are in a state of plasma.

Physics - The State of Matter

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Physics is the study of matter. Matter is any object having mass. It is also used to describe all physical objects.

State of Matter refers to the phases of matter. There are four phases that include solid, liquid, gas and plasma. Plasma is the most abundant form of matter in the entire universe, although it is not a common state of matter. Most stars are in a state of plasma.

The three common forms of matter that we readily encounter are solids, liquids and gases. Each of these is made up of molecules, ions and atoms. However, the behaviors of the molecules, ions and atoms differ in each phase.

A molecule is an electrically neutral group consisting of two or more atoms. They are held together by a chemical bond. Molecules are common in organic substances and make up most of the oceans and atmosphere.

An ion is a molecule or an atom. It contains an uneven number of electrons and protons which give an atom either a negative or a positive electrical charge.

An atom is the basic unit of matter. The atom has a dense central nucleus surrounded by a cloud of negatively charged electrons.

A solid is matter that has both a definite shape and a definite volume.

A liquid is matter that does not have a definite shape but, rather, has volume and takes the shape of whatever container it is in such as a lake or a pool or even a glass.

Gas is a state of matter that changes both its shape and its volume as it is not contained.

Volume is the amount of space that matter takes up.

CHANGING FORMS OF MATTER

Freezing is the process of changing liquid matter into solid matter.

Vaporization is the process of changing liquid matter into a water vapor.

Evaporation is the process by which molecules at the surface of liquid matter are absorbed, causing the liquid matter to change into a gaseous state.

Condensation is when gas matter loses thermal energy and converts to a liquid form.

Sublimation is when the surface of solid matter has enough energy to convert to a gas.

LAWS OF MATTER

Charles’ Law: Charles’s Law is related to the temperature of gas. As the temperature increases, the volume of the gas increases.

Boyle’s Law: Boyle’s Law is the relationship that exists between pressure and the volume of gas.

1.
Which of the following is NOT a common state of matter?
Solid
Gas
Plasma
Liquid
Although plasma is the most abundant form of matter in the universe, it is not one of the common forms of matter. Answer (c) is correct
2.
This type of matter does not have a definite shape but does have volume and takes the shape of whatever container it is in.
Solid
Gas
Plasma
Liquid
Liquid matter does not have a definite shape. Rather, it has volume and takes on the shape of the container in which it is in. Answer (d) is correct
3.
An electrically neutral group consisting of two or more atoms is known as ______.
plasma
a molecule
an atom
an ion
A molecule is an electrically neutral group consisting of two or more atoms. Answer (b) is correct
4.
This is the basic unit of matter.
Molecule
Atom
Nucleus
Ion
An atom is the basic unit of matter. Answer (b) is correct.
5.
State of Matter refers to _______.
the phases of matter
the number of molecules in matter
transformation of one matter to another matter
matter found in its natural form
The State of Matter refers to the four phases of matter. Answer (a) is correct
6.
This is the process of changing liquid matter into solid matter.
Evaporating
Freezing
Condensation
Sublimation
Freezing is the process of changing liquid matter into solid matter. Answer (b) is correct
7.
This is when gas matter loses thermal energy and converts to a liquid form.
Evaporation
Condensation
Vaporization
Sublimation
When gas matter loses thermal energy and converts to a liquid form it is known as condensation. Answer (b) is correct
8.
This is the amount of space that matter takes up.
A container
Atmosphere
Volume
Universe
Volume refers to the amount of space that matter takes up in each of its forms. Answer (c) is correct
9.
Physics is the study of _______.
atoms
molecules
matter
volume
Physics is the study of matter. Answer (c) is correct
10.
As the temperature increases, the volume of the gas increases. This is known as ______.
Charles' Law
State of Matter
Sublimation
Boyle's Law
Charles’ Law is the law of the impact upon matter when temperature increases, the volume of gas increases. Answer (a) is correct
Author:  Christine G. Broome

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