Energy

3. relating to movement toward a center of gravity
5. also known as thermal energy
6. the ability to do work
7. the speed of something in a given direction
8. comes from vibrations moving through something
13. the energy an object has because of its motion
14. a dimensionless quantity representing the amount of matter in a particle or object
15. the energy of either an object in motion or the energy that is stored in objects by their position
16. the energy contained within a system that is responsible for its temperature.

1. a fundamental law of nature stating that the total amount of energy in a system never changes
2. a kind of kinetic energy with the ability to make types of light visible to human eyes
4. stored energy that depends upon the relative position of various parts of a system
9. capable of being easily stretched or expanded
10. a form of energy released from the nucleus, the core of atoms, made up of protons and neutrons.
11. the power an atom's charged particles have to cause an action or move an object.
12. the energy which is stored in the bonds of chemical compounds