P2 Revision Crossword
Across
- 3. What is the common metal used to absorb X-ray radiation.
- 5. What type of materials emit gamma radiation.
- 7. Highest energy electromagnetic wave
- 8. What type of radiation makes water molecules vibrate
- 9. which molecule absorbs ultra-violet radiation in the atmosphere
- 11. Scientists can use computer models to understand what.
- 13. The burning of what by humans has lead to the increase in CO2 in the last 200 years.
- 14. name the process that removes CO2 from the atmosphere by plants
- 16. Ionising radiation can cause
- 17. name one of the green house gases
- 19. Number of photons x Energy of each photon
Down
- 1. Infrared and light can be transmitted down what.
- 2. The intensity of light does what with increasing distance
- 4. this signal varies between 0 and 1
- 6. The electromagnetic radiation with the largest wavelength
- 10. Light can be thought of either a wave or a particle which is called a what?
- 11. radio waves are normally used for
- 12. What is removed from an atom by ionising radiation
- 15. non ionising radiation can cause what.
- 18. This radiation is used for examining bones.