Use in Physics
Time derivatives are a key concept in physics. For example, for a changing position, its time derivative is its velocity, and its second derivative with respect to time, is its acceleration. Even higher derivatives are sometimes also used: the third derivative of position with respect to time is known as the jerk. See motion graphs and derivatives.
A large number of fundamental equations in physics involve first or second time derivatives of quantities. Many other fundamental quantities in science are time derivatives of one another:
- force is the time derivative of momentum
- power is the time derivative of energy
- electrical current is the time derivative of electric charge
and so on.
A common occurrence in physics is the time derivative of a vector, such as velocity or displacement. In dealing with such a derivative, both magnitude and orientation may depend upon time.
Read more about this topic: Time Derivative
Other articles related to "use in physics, in physics, physics":
... In physics, SDEs are typically written in the Langevin form and referred to as "the Langevin equation." For example, a general coupled set of first-order SDEs is often written in the ... In physics, the main method of solution is to find the probability distribution function as a function of time using the equivalent Fokker-Planck equation (FPE) ... include the path integration that draws on the analogy between statistical physics and quantum mechanics (for example, the Fokker-Planck equation can be ...
Famous quotes containing the word physics:
“... it is as true in morals as in physics that all force is imperishable; therefore the consequences of a human action never cease.”
—Tennessee Claflin (18461923)