Across
- 2. A measure of the amount of matter in a body
- 3. a measure of an object's resistance to motion
- 7. A negatively-charged sub-atomic particle
- 9. a quantity without direction
- 10. A measure of the disorder
- 12. a particle of light
- 13. Unit of electric current
Down
- 1. The maximum displacement of particles of the medium from their mean positions
- 4. the tight cluster of nucleons at the center of an atom
- 5. The rate of change of velocity in a given time
- 6. The mass of an object divided by its volume
- 8. a quantity with direction
- 11. The basic building block of all normal matter