Flashcards
physics-light
Cards in this deck (19)
- 1what type of wave is lightan electromagnetic wave
- 2what does light travel instraight lines
- 3what is the law of reflectionwhen light is reflected, the angle of incidence is equal to the angle of refraction
- 4what is the angle of incidencethe angle between the normal and the ray of light
- 5what is the angle of refractionthe angle between the normal and the reflected ray
- 6what do concave mirrors cause parallel rays of light to dobring them to a focus
- 7what do convex mirrors cause parallel rays of light to dospreads the light apart
- 8what is refractionit is when light changes speed as it passes from one medium to another
- 9what else can refraction cause apart from change in speedchange in direction
- 10what happens when light passes from a fast to slow mediumit bends towards the normal
- 11what happens when light goes from a slow to fast mediumit bends away from the medium
- 12what type of lens brings light to a focusconvex lens
- 13what type of lens spreads light aparta concave lens
- 14what are lenses used foroptical instruments
- 15what is the focal lengththe distance from the lens and where it focuses
- 16how do you correct short sighted peoples sightby placing a concave lens infront of the eye
- 17how do you correct long sighted peoples sightby placing a convex lens infront of the eye
- 18how can you split white light into the visible spectrumby aiming the white light through a prism and when it comes out at the other side, it will be split into the visible spectrum
- 19why can white light be split into the visible spectrum by a prismdifferent wavelengths are refracted at slightly different angels
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- Flashcards on physics-light, created by Jeni Woolley on 11/03/2015.
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- Jeni Woolley
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