Matter • Matter - anything that has mass and takes up space • Mass - the amount of “stuff” making up an object ○ Stars ○ Electrons ○ Neil Diamond • Inertial Mass ○ How hard it is to accelerate an object • Gravitational Mass ○ How large a gravitational force an object experiences Energy • Energy - The ability or capacity to do work • Work - the process of moving an object Mass-Energy Equivalence • In the early 20th century, Albert Einstein formalized a relationship between mass and energy • The mass of an object, a key characteristic of matter, is really a measure of its energy • The source of all energy on Earth is the conversion of mass into energy
