Physics plays an important role in many of the liberal arts disciplines and contributes to society’s understanding of such areas as energy, weather, medical science, and space exploration. A rigorous major provides students with the preparation required for graduate study in physics.

One of the ways we study the natural world is by using physics equipment and theories. Remote sensing uses electromagnetic waves, which are explained by physics, to take all kinds of data from aircraft and from space. Fluid dynamics helps us explain air and water currents, and makes the weather more predictable.

Physics is the science of matter and its motion, space-time and energy. Physics is all around us. We can find Physics as the backbone for any daily life example such as an electric light, electricity, the working of our vehicle, wristwatch, cell phone, CD player, radio, plasma TV set, computer, and – the list goes on.

Physics extends well into your everyday life, describing the motion, forces and energy of ordinary experience. In actions such as walking, driving a car or using a phone, physics is at work. For everyday living, all the technologies you might take for granted exploit the rules of physics.

Contents

• Classical mechanics.
• Thermodynamics and statistical mechanics.
• Electromagnetism and photonics.
• Relativistic mechanics.
• Quantum mechanics, atomic physics, and molecular physics.
• Optics and acoustics.
• Condensed matter physics.
• High-energy particle physics and nuclear physics.

Science informs public policy and personal decisions on energy, conservation, agriculture, health, transportation, communication, defense, economics, leisure, and exploration. It’s almost impossible to overstate how many aspects of modern life are impacted by scientific knowledge.

In your everyday life, you encountersolutions all the time. For example, you may add salt to water when cooking pasta. The salt dissolves in the water, resulting in a solution. In vinegar, acetic acid is the solute and water is the solvent and in bleach, sodium hypochlorite is the solute and water is the solvent.

Air. Many chemical reactions are carried out in solutions, and solutions are also closely related to our everyday lives. The air we breathe, the liquids we drink, and the fluids in our body are all solutions. Furthermore, we are surrounded by solutions such as the air and waters (in rivers, lakes and oceans).

Solutions play a very important role in many biological, laboratory, and industrial applications of chemistry. Of particular importance are solutions involving substances dissolved in water, or aqueous solutions.

There are three types of solutions that can occur in your body based on solute concentration: isotonic, hypotonic, and hypertonic.

Few advantages of preparing solution: Medicines can be easily administered in living bodies in solution form. For example, intravenous injections are always dissolved in water containing salts at particular ionic concentrations that match with blood plasma.

Solution, in chemistry, a homogenous mixture of two or more substances in relative amounts that can be varied continuously up to what is called the limit of solubility. The term solution is commonly applied to the liquid state of matter, but solutions of gases and solids are possible.

bleach (sodium hypochlorite dissolved in water) dishwater (soap dissolved in water) carbonated beverages (carbon dioxide dissolved in water is what gives sodas their fizz) powdered drinks.

Characteristics

• A solution is a homogeneous mixture of two or more substances.
• The particles of solute in a solution cannot be seen by the naked eye.
• A solution does not allow beams of light to scatter.
• A solution is stable.
• The solute from a solution cannot be separated by filtration (or mechanically).

Blood is a colloidal solution of an albuminoid substance.

Soda is a solution. Sugar, flavoring, coloring, and carbon dioxide are dissolved in the water at low…

A Tea is a solution of compounds in water, so it is not chemically pure. It is usually separated from tea leaves by filtration. B Because the composition of the solution is uniform throughout, it is a homogeneous mixture.

colloidal solution

When particles of a substance are evenly and microscopically distributed throughout another substance then that solution is known as colloid. Thus, we can conclude that out of the given options honey does not settles down due to its viscosity and therefore it is not a colloid.

Milk is not a solution because it has more than one phase suspended in it — it has a liquid phase and a solid phase. Unhomogenized milk is not a solution, it’s a suspension because the fat (aka cream) will separate from the rest of the milk and rise to the top, since fat is less dense than water.

Milk is a colloid, with tiny globs of butterfat suspended throughout the liquid. suspension A mixture in which particles are dispersed throughout the bulk of a fluid.

Milk is called a colloid because it does not settle down when left undisturbed and it cannot be seperated by filtration. Since these characters are seen in colloids milk is known as colloid. Aakash EduTech Pvt.

Filtered tea is a colloid and hence it is a heterogeneous mixture. A colloid is a heterogeneous mixture. The size of the solutes in this mixture is so small that they cannot be seen individually with naked eyes, and seems to be distributed uniformly throughout the mixture.

Milk is an emulsion type colloid solution. In milk fat globules remain dispersed in water. So, milk is not a pure substance. It is a heterogeneous mixture.

The components of a colloidal solution are the dispersed phase and the dispersion medium. The solute-like component or the dispersed particles in a colloid form the dispersed phase, and the component in which the dispersed phase is suspended is known as the dispersing medium.

Lyophilic colloids are reversible colloids. Lyophilic colloids are stable. We can separate the components of the milk, so milk is a lyophilic colloid.

Gelatin, starch and gum all are examples of lyophilic colloids and sulphur is an example of lyophobic colloids.

When these colloids are mixed with the suitable liquid, very weak force of attraction exists between colloidal particles and liquid and system does not pass into colloidal state readily. Of the given solution the gold sol is lyophobic colloidal solution.