Across
- 2. an inclined plane wrapped helically around its axis
- 4. the joining of two nuclei to form a new, heavier nucleus
- 9. time for the activity of a radioactive source to decrease by half
- 12. the displacement travelled in 1 second
- 15. a fast moving electron (ejected from an unstable nucleus)
- 17. the energy given to each coulomb of charge by the power supply or battery
- 18. the charge transferred in 1 second
- 19. these particles represent force
Down
- 1. Avogadro's constant is also known as______
- 3. another name for universe
- 4. the splitting of a heavy nucleus into two smaller pieces along with two or three neutrons
- 5. the energy transferred in 1 second
- 6. the particle that expresses the particle nature of light
- 7. the force exerted on 1 square metre
- 8. _________(of a radioactive source) is the number of decays per second
- 10. some say it is an EM wave some say it is a particle
- 11. when an atom gains or loses electrons
- 13. high frequency electromagnetic waves (ejected from an unstable nucleus)
- 14. the distance travelled by light in 1 year
- 16. branch of mathematics that deals with derivatives and integrals