Across
- 2. the transfer of energy
- 7. atoms that have the same atomic number but different atomic mass numbers
- 8. anything that occupies space
- 9. a mechanical transfer of hot molecules in a gas or liquid from one place to another
- 11. a group of atoms of various elements held together by chemical forces
- 13. the same atomic number and the same atomic mass
- 15. the unit of radiation absorbed dose
- 18. the unit of radioactivity
- 20. is a measure of how fast something is moving or the rate of change of its position with time (distance/time)
- 21. the unit of radiation exposure or intensity
- 22. ability to do work
- 23. work divided by time
- 25. the spontaneous emission of particles at energy in order to become stable
- 27. energy the energy of motion
- 28. the quantity of matter
- 30. the smallest particle that has all the properties of an element
- 31. the product of mass times acceleration
Down
- 1. a body that will remain at rest or continue to move with constant velocity
- 3. atoms that the same number of neutrons but different number of protons
- 4. meters kilograms seconds
- 5. the product of mass and velocity
- 6. the kinetic energy of the random motion of molecules
- 10. atomic nuclei that have the same atomic mass number but different atomic numbers
- 12. transfer of heat through a material or by touching
- 14. the product of force and distance
- 16. the rate of change of velocity with time
- 17. a force on a body caused by a pull of gravity on it (m x g)
- 19. energy ability to do work by virtue of position
- 21. the unit of occupational radiation exposure expressed as effective dose
- 24. removal of an electron from an atom
- 26. centimeters grams seconds
- 29. practice of keeping radiation exposure as low as possible