Crossword Physics (physcom)

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