A physical phenomenon Is a change that can be reversible or not and that occurs in a body, a matter or a substance.
The condition of a physical phenomenon is that such a change does not lose the characteristics or properties of the body, matter or substance.
It should not be confused with a chemical phenomenon, which refers to the permanent and irreversible change of a body, matter or substance. These changes produce one or more new bodies, materials or substances, since the molecular structure is modified.
Examples of physical phenomena
1- Gravity
Without gravity, it would be impossible to walk, jump, ski or dive. All things fall to the ground, and this has been taken for granted until it came Isaac Newton .
If there were no gravity, we would all be floating and not tethered to the surface of the Earth, without any atmosphere. Gravity is a physical phenomenon that holds everything together and makes life possible on Earth.
2- Air pressure
If we did not have air pressure, the internal blood pressure would cause our human bodies to explode. This is why astronauts have to wear space suits in space (leaving aside exposure to radiation).
3- The light
Light is a wave, so it experiences diffraction, reflection and refraction. Diffraction is what forms the rainbows; Reflection is what allows us to see ourselves in the mirror.
Refraction is what allows us to look through magnifying lenses, Microscopes And telescopes to discover the much smaller wonders or much further away from us.
4- Sound
Sound is a wave that circulates through the air and other materials. Without sound, we would not have a music nor would we be able to communicate talking.
5- Conservation of energy
The conservation of energy allowed physicists and engineers to develop theoretical models and build machines to exploit nature. It is a simple principle that allows us to predict how much energy we can get from a machine.
The fact that energy can not be created or destroyed also means that we can not get free energy without doing the work.
6- Entropy
Entropy always increases. This phenomenon does so many things that it is impossible to enumerate them.
The diffusion of gases allows us to breathe the oxygen that the plants create. Other examples are the electric current, the thermal current, the water flow from the highest to the lowest, etc.
7- Nuclear fusion
It is the process that powers the sun, which gives the heat and light necessary for life to be possible on Earth.
8- Newton's third law
It is what allows us to sit in a chair without being crushed, to walk applying a force back on the floor and to make each action have an equal and opposite reaction.
9- Earthquakes
Earthquakes occur because Earth is composed of tectonic plates Connected by fault lines. When the stress between these plates grows and one of them slips, the shock waves are sent through the earth and any nearby bodies of water.
10- The hurricanes
They form over the ocean when a low pressure area is fed by the heat of condensation.
This heat comes from water vapor that rises to clouds, releasing energy. If there is no outlet for the accumulation of energy, the winds will accumulate.
11- The aurora borealis
It occurs when the energetic electrons of the solar wind interact with molecules and atoms in our atmosphere .
The magnetic field of the Earth captures a part of the solar wind, and the display of light comes from the many collisions between the particles.
12- Clouds Mastodontic
Also known as mammatocumulus, meaning"unequal clouds", are a cell pattern of bags that hang below the base of a cloud. Composed mainly of ice, mastodon clouds can extend for hundreds of kilometers.
13- Red tides
Better known as algae bloom, so-called red tide is a natural event in which estuarine, marine or freshwater algae accumulate rapidly in the water column and can convert entire areas of an ocean or a beach into a red color blood.
This phenomenon is caused by high levels of phytoplankton that accumulate to form dense visible clouds near the surface of the water.
14- Tinnitus
"Tinnitus"is the common name for a series of phenomena that involve a persistent, low-frequency invasive buzz that is not audible to all people. Buzz has been reported in several geographic locations.
They have been reported all over the world, especially in Europe: a buzz on the great island of Hawaii, typically related to volcanic action, is heard in places tens of miles away.
15- Maelstroms
The maelstroms, immensely powerful whirlwinds, have a long history in fiction as a terrible danger for sailors. In real life there have never been cases where large ships have been sunk by whirlwinds.
The turbulent masses of water in the vortices, usually driven by unusually strong tides, are impressive.
16- Lunar Rainbow
A lunar rainbow is an arc produced by the light of the moon instead of the sunlight. Apart from the difference in light source, its formation is exactly the same as for a solar rainbow.
It is caused by the refraction of light in many droplets of water, such as a rain or a waterfall, and is always located in the opposite part of the sky from the moon in relation to the observer.
17- Light pillar
A pillar of light is an atmospheric optical phenomenon in the form of a vertical band of light that appears to extend above and / or below a light source.
The effect is created by the reflection of light from numerous small ice crystals suspended in the atmosphere or clouds.
References
- Margarita A Man'ko. Mathematical methods of studying physical phenomena (s.f.). Retrieved from iopscience.iop.org.
- Branches of Science (s.f.). Retrieved from infoplease.com.
- Weird physical phenomena (s.f.). Retrieved from physics.org.
- What is Physical Phenomenon (s.f.). Retrieved from igi-global.com.
- Physical phenomenon. (S.f.). Retrieved from encyclopedia.kids.net.au.
- What is physical phenomena? (S.f.). Retrieved from sven.co.za.