Across
- 4. Light Amplification by Stimulated Emission of Radiation
- 5. The sun, but not the Moon is a light .........
- 7. Process by which light bounces off an object
- 8. 340 m/s speed of ........
- 9. The variable measured in an experiment
- 11. light passes though it easily
- 13. Absence of light caused by a solid object
- 14. The variable kept constant in an experiment
- 15. The variable I change in an experiment
- 16. Only allows certain colours of light to pass through it
- 17. the reference line from which angles are measured
Down
- 1. images in a mirror are ............ inverted
- 2. The range of colours/wavelengths in white light, visible ..............
- 3. Process by which light changes direction as it enters a differenr medium
- 4. Radiating or reflecting light
- 6. 300,000,000 m/s, speed of ............
- 10. Process by whih light is separated into colours/wavelengths
- 11. Light passes through but is scattered, objects appear fuzzy
- 12. light cannot pass through it
- 15. Angle at which light hits a surface