Description: A motet for Christmas Day from Selectae quaedam cantiones sacrae, Nuremberg, 1571. Published as the pendant second part of the motet Hodie Christus natus est, this edition is offered as an independent piece.
The universe is made up of matter and energy. Matter â anything that has mass and takes up space â is pretty straightforward and easy to grasp, but energy is a bit more abstract. In physics, energy is the ability to do work, or the ability to move or elicit change in matter.
mechanical energy-energy in a mechanical form. radiant energy-energy that is transmitted in the form of (electromagnetic) radiation; energy that exists in the absence of matter. radiation-energy that is radiated or transmitted in the form of rays or waves or particles.