# Physics Definitions

just some definitions u might need to know

- Created by: Braniac
- Created on: 16-06-12 18:57

First 259 words of the document:

Physic Definitions

Fluid: A fluid is defined as any substance that can flow. This normally means any gas

or liquid, but solids made up of tiny particles can sometimes behave as fluids. An

example is the flow of sand through an hourglass.

Laminar Flow (also known as streamline flow) & Turbulent Flow: Laminar flows

occur at lower speeds, and will change to turbulent flow as the fluid velocity

increases past a certain value. The velocity at which this changeover occurs will vary

depending upon the fluid in question and the shape of the area through which it is

flowing.

Eddy: is the swirling of a fluid and the reverse current created when

the fluid flows past an obstacle. The moving fluid creates a space

devoid of downstream-flowing fluid on the downstream side of the

object.

Newtonian Liquid: If a fluid or liquid follows Isaac Newton's

formulae, as most common liquids do, it is known as a Newtonian

Liquid. With scientific investigations, Newton created equations based

on his results to describe the frictional force between the layers in

streamline flow.

Chaos: Chaos theory studies the behaviour of dynamical systems that are highly

sensitive to initial conditions, an effect which is popularly referred to as the butterfly

effect. Small differences in initial conditions (such as those due to rounding errors in

numerical computation) yield widely diverging outcomes for chaotic systems,

rendering long-term prediction impossible in general

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