2346930
Description
Mind Map by Lilly Tarmey, updated more than 1 year ago
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Created by Lilly Tarmey
about 9 years ago
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Light
- Reflection
- Light reflected into an eye
from a luminous source
- Light reflected into an eye
from a non-luminous source
- Light reflected into an eye
from a luminous source
- Refraction
- Ray diagram- This helps to
explain how refraction works
- Refraction is the bending of light as it travels from one
medium (clear substance) to another. For example when light
travels from air to glass. Refraction occurs due to the change
in speed in which the light travels at. For example, light travels
much faster in air than glass because glass is more dense for
therefore it takes more energy for the light travels.
- Note: The Angle of Incidence is the
same as the Angle of Refraction
- Note: The Angle of Incidence is the
same as the Angle of Refraction
- Density- The more dense a
media is the the more the
light sloes down and so bends
towards the normal line e.g air
is less dense than glass
- Interface- The point where
the light goes from one
medium to another e.g air -
perspex
- Ray diagram- This helps to
explain how refraction works
- Images + Lenses
- An image is created when light reflects
off an object, travels through a lens and
focuses on a point, creating an image
- Converging lenses are always convex (curve
outwards). It makes rays that are coming in converge
onto a point. The point where the rays converge is
called the principal focus. Used in cameras and
glasses.
- An image is created when light reflects
off an object, travels through a lens and
focuses on a point, creating an image
- Colour
- Spectrum colours- Red, orange,
yellow, green ,blue ,indigo, violet
- This diagram shows how colours are made/ how
red, green and blue (the only colours that we can
actually see) are mixed to create shades (pink,
purple and yellow
- All the colours of the spectrum hit a
box, for example, but only the colours,
or colours mixed to create a shade, of
the box will be visible.
- Spectrum colours- Red, orange,
yellow, green ,blue ,indigo, violet
Media attachments
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