Flashcards
Light
Cards in this deck (12)
- 1How does light travel?In straight lines
- 2Approximately how fast does light travel?About 300,000 k/s
- 3What is faster, Light or Sound?Light is almost 1 million times faster than Sound (Light = 300,000 and Sound = 0.34). This is why we SEE Fireworks before we HEAR them.
- 4Why do we see things?Because light reflects into our eyes.
- 5What is a Luminous object?It is an object which produces light.
- 6What is a Non-Luminous object.A Non - Luminous object is one that reflects light.
- 7What is a Non-Luminous object.A Non - Luminous object is one that reflects light.
- 8What are shadows?Shadows are places where light is blocked.
- 9What is the normal?The normal is an imaginary line that is 90 degrees from the surface.
- 10What is the incident ray?The incident ray is the ray of light that comes from the source
- 11What is the Angle of Incidence?The angle of incidence in the angle between the Incidence ray and the Normal.
- 12What is the Reflection Ray?The reflection ray is the ray of light reflected off an object.
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- Other Physics Flashcards on Light, created by anna2528 on 02/05/2013.
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- anna2528
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