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hyperphysics

Lorentz Force Law

Both the electric field and magnetic field can be defined from the Lorentz force law. The electric force is straightforward, being in the direction of the electric field if the charge q is positive, ...

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The Four Forces of Flight

NASA page explaining the forces involved in flight: lift, drag, thrust and weight.

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Vectors- Motion and Forces in Two Dimensions

This is a good clear site that covers projectile motion and forces, includes diagrams and animations to help the explanations.

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Resultant of Forces (Addition of Vectors)

Java Applet showing how to find (graphically) the resultant of 1, 3, 4, or 5 forces.

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Net Forces

Three vector forces that can be changed. The resultant vector is calculated and shown by this JAVA applet.

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hyperphysics

Coulomb Barrier

In order to accomplish nuclear fusion, the particles involved must first overcome the electric repulsion to get close enough for the attractive nuclear strong force to take over to fuse the particles.

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Electric Force fields

A simple site that contains an online alternative to plotting compass' or iron filings. The applet is very effective at showing both the direction of the force on an electron and its magnitude.

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hyperphysics

Fundamental Forces

This page describes in detail the four fundamental forces of nature.

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Force on a Wing

This shockwave activity provides a very basic simulation of the force on an airplane wing. Subscription required but with 30 day free trial.

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Hits: 1187

hyperphysics

Hooke's Law

One of the properties of elasticity is that it takes about twice as much force to stretch a spring twice as far. That linear dependence of displacement upon stretching force is called Hooke's law.

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