Across
- 1. Mass ÷ Volume = ______
- 4. If you cool an object what happens to the kinetic energy of its particles?
- 8. ________ energy: The total potential and kinetic energy stored within the particles of a material.
- 9. The average kinetic energy of the particles of a material is equivelant to:
- 12. When an atom loses an electron to become charged.
- 13. The unit of radioactive decay.
- 14. The time taken for half the atoms in a sample to decay.
- 16. Radioactive atoms attached to objects unintentionally.
- 17. What type of radiation is used in smoke detectors?
Down
- 2. If you increase the temperature of a gas what happens to its pressure?
- 3. Deliberately exposing an object to radiation.
- 5. What is a use of gamma radiation?
- 6. What particle is a beta particle?
- 7. An alpha particle is the same as the nucleus of which element?
- 10. Exposure to radiation increases the risk of what disease?
- 11. A _______ counter is used to measure radioactive decay.
- 15. Which type of radiation is the most penetrating?