Flashcards
Reflection and Rarefaction
Cards in this deck (9)
- 1What is the angle of incidence?The angle of incidence is the original ray or the incident ray.
- 2What is the angle of reflection?The angle of reflection is the angle at which the incident ray reflects.
- 3What is the relationship between the angle of incidence and the angle of reflection?The angle of incidence ALWAYS equals the angle of reflection.
- 4What is the normal?The normal is a line which is at a right angle to the reflector. It is perpendicular to the mirror in the picture above.
- 5What happens in refraction?Refraction happens when a wave passes through two substances of different densities, such as air and glass, causing the wave to change direction.
- 6What happens if a wave enters a material of a different density at a 90 degree angle?It just carries on in the same direction.
- 7What happens when the ray leaves the material of a different density?It returns to the direction it was originally travelling but may be in a different position than it was before.
- 8What does refraction do when a wave travels into a more dense material?It causes the wave to bend towards the normal. In a less dense material it would bend away from the normal.
- 9What happens to the wavelength and speed as the wave passes through a more dense material?The wavelength and speed both decrease but return to normal upon leaving the material. They increase in a less dense material.
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- GCSE Physics Flashcards on Reflection and Rarefaction, created by Meriel ... on 22/06/2016.
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- Meriel ... · Jun 2016
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- Jun 24, 2016
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