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Chapter 4 - Waves and Light
BC Science 8
www.bcscience.com
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Across
1. A triangular glass that causes white light to split into colours.
4. The abbreviation for all the colours in the rainbow.
6. Combining red and blue light produce this colour of light.
7. A disturbance or movement that transfers energy through matter or space, without causing any permanet displacement.
9. The range of colours or frequencies of visible light.
10. The matter that waves travel through.
12. Matter moving back and forth along the same direction of travel.
15. The highest point in a wave.
16. Cycles per second.
17. Matter moving back and forth perpendicular to a wave's motion.
18. The number of oscillations that occur in a given time.
19. The distance from crest to crest.
Down
2. The bending or changing direction of a wave as it passes from one medium to another.
3. Combining blue and green light produce this colour of light.
5. When a light wave strikes and object and bounces off.
8. The height of a wave crest as measured from its rest position.
11. Wavelength and frequency have a(n) _________ relationship.
13. The capacity to apply a force over a distance.
14. The lowest point in a wave.
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