Physics Animations
Animates the motion of a pendulum with sliders to set the initial angle and angular velocity.
Shows the plot of $\theta(t)$ next to an oscillating pendulum.
Shows the flow in phase space next to an oscillating pendulum.
Shows how the motion of a pendulum can be understood by sketching the potential energy curve.
Draws the catenary shape of a rope hung between two endpoints.
Draws the electric field lines between two opposite charges.
Orbits and the Effective Potential
Shows how the shape of the orbit of a planet can be understood by sketching the effective potential.
Shows the orbit of a planet or comet with a tunable eccentricity.
Shows the motion of an oscillating block attached to a spring.
Shows the $x$ vs $t$ curve for a block attached to a spring.
Shows the motion of a block attached to a spring next to its potential energy curve.
Animates the motion of a double pendulum. Things get chaotic!
Almost any potential looks like a harmonic oscillator near its stable equilibrium points.
Animates the motion of a pendulum with a spring in place of a rigid rod.
Draws the shortest route for a bead sliding along a wire between two points.
Illustrates the geometry of 3D spherical coordinates.
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