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