Interrupted Pendulum

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram CDF Player or other Wolfram Language products.

Requires a Wolfram Notebook System

Edit on desktop, mobile and cloud with any Wolfram Language product.

This Demonstration illustrates a key experiment of Galileo that furthered the understanding of inertia and the conservation of energy. He blocked the wire of a pendulum in the middle of its trajectory, altering the pivot point. He observed that the pendulum bob always reached the same height as at the start. In modern terminology, at the bob's initial position, it has only potential energy; at its lowest position, only kinetic energy; and in between, there is an interchange between kinetic and potential energy, with a constant sum.

Contributed by: Enrique Zeleny (March 2011)
Open content licensed under CC BY-NC-SA




Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.