• Thursday July 9,2020

Time in Physics

We explain to you what time is approached since Physics and its formulas. Time in classical mechanics and relativistic mechanics.

Time can be thought of as the duration of things that are subject to change.
  1. What is the time in physics?

In physics, time is called a magnitude that serves to measure the duration or the separation of one or more events . This allows them to be sorted in a sequence (past, present, future) and determine whether or not they occur simultaneously.

Time is represented by the variable t, its unit of measurement in the International System is the second ( s ), in a sexagesimal framework (60 units constitute a larger one) and the device with which it is measured is the clock .

Time can be thought of as the duration of things that are subject to change, and it is one of the most important physical quantities . Within the physical considerations, it is considered a variable that, combined with others, allows to determine the position, movement, speed and many other magnitudes of an object or system.

More in: Time.

  1. Formulas to calculate the time

The speed is calculated from the formula V = dt

Time is involved in numerous physical calculations, therefore there will be many possible formulas to calculate it, depending on the other variables we have at hand. To cite some examples:

  • Speed The speed is calculated from the formula V = dt (Speed ​​is equal to distance by time). It is measured in units of distance per units of time: Km / h, m / s, etc. If we clear the time in this formula, it would be that t = d / v.
  • Acceleration The acceleration ( a ) is the change in time between two speeds and is calculated with the formula: a = Δv / Δt, where Δv is initial v - final v and Δt is initial t - final t, that is, clearing, that : t = (V f - V i ) / 2a.
  • Time dilation . The formula for calculating, in quantum mechanics, the time dilation of an event measured at rest with respect to itself is determined with the following formula: Δt '= Δt i / √1-v 2 / c 2 .
  1. The weather in classical mechanics

In classical physics, time is considered an absolute value, which occurs the same for all the phenomena studied. This means that two different observers will always agree on the order of events (past, future and present simultaneously).

  1. The time in relativistic mechanics

In the relativistic mechanics of physics, time is a more complex concept, since it is linked to the position of the observer of the event, that is, it is relative. Two observers that differ in their position and movement will differ in their measurement of the time of an event, so this magnitude will always be linked to a reference point.

This distinction arose after the formulation of Albert Einstein's Theory of Relativity and its profound impact on the field of physics. According to her, there is no single time and the perception of it may be delayed under certain physical conditions.

Interesting Articles

Nihilism

Nihilism

We explain to you what nihilism is, what was the origin of this famous term and what Russian nihilism consisted of. Nihilism denies that existence has a meaningful sense of some. What is nihilism? When talking about nihilism, usually denies the denial of traditional forms of moral and religious values , or any form of thought that finds guiding principles to life

Animal Kingdom

Animal Kingdom

We explain to you what the animal kingdom is, what is its origin and its characteristics. In addition, how is its classification, taxonomy and examples. The animal kingdom belongs to about two million different species. What is the animal kingdom? The animal or animal kingdom constitutes, together with the vegetable kingdom, fungi, protists and moneras, one of the possible ways in which biology classifies known life forms

fungi kingdom

fungi kingdom

We explain to you what the fungi kingdom is, what are its characteristics and classification. In addition, how is your nutrition, reproduction and examples. It is estimated that there are about 1.5 million species of unknown fungi. What is the kingdom? The kingdom was one of the groups in which biology classifies known life forms

Reportage

Reportage

We explain to you what a report is and why it is considered a journalistic account. In addition, its characteristics and how is its structure. A report has several broadcast channels. What is reportage? The report is a journalistic work , whether cinematographic or sports (to name a point) that contains an informational purpose

Financial Planning

Financial Planning

We explain to you what the financial planning and what are its objectives. In addition, how it is classified, why it is important and examples. Financial planning must consider deadlines, costs and objectives in detail. What is financial planning? In the field of administration and finance, financial planning or financial planning is known as the process of determining how an organization, company or person will manage its resources capital to achieve its established objectives

Covalent bond

Covalent bond

We explain what a covalent bond is and some of its characteristics. In addition, covalent link types and examples. In a covalent bond, the linked atoms share an additional pair of electrons. What is a covalent bond? It is called a covalent bond, a type of chemical bond, which occurs when two atoms link together to form a molecule, sharing electrons