Across
- 4. used for transfer energy
- 6. is a charge atom (or molecule)
- 9. / process where heat is transfer by electromagnetic weaves
- 10. number/ total number of protons and neutrons
- 11. motion that an object has
- 12. force necessary to provide a mass of one kilogram with an acceleration of one metre per second per second.
- 13. in rows
- 16. is what makes the ability to do working
- 17. / characteristic property of a substance
- 18. group of atoms
- 19. what everything is made of
Down
- 1. source of energy
- 2. the perpendicular force per unit area
- 3. has electric charge (+)
- 5. effect/ force that makes an object to move
- 7. vertical columns
- 8. mass in motion
- 14. emitting radiation spontaneously
- 15. the outside part of an atom
- 19. number/ also called proton number