Physics is a branch of science that interestingly enough developed out of philosophy, and was thus referred to as natural philosophy up until the late 19th century - a term describing a field of study concerned with "the workings of nature". Here's a short, very interesting and nice animation showing a short history of physics, from Galileo to Einstein. Hope you like it - I sure did.
BBC Science Club - Physics from Asa Lucander on Vimeo.