Light_GB

Light_GB - Light Where does light come from Our major light...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Light
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Where does light come from? Our major light source: the Sun
Background image of page 2
Where else does light come from?
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Sorting light sources Natural vs. Man-made (artificial)
Background image of page 4
Are these light sources? moon water mirror These items are not light sources, instead they are reflecting light from other sources.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
How does light travel? Light rays travel in straight lines from the light source. When it hits an opaque object, some light is absorbed and the rest reflects off. If the object is transparent , light rays pass through it easily. If the object is translucent , some light can pass through, but the rest of the light will be reflected. light source
Background image of page 6
How do we see? Light coming from, (or reflecting off) objects enters the eye through the cornea then the pupil. It is focused clearly by the lens on to the retina. The light sensitive cells of the retina gather information about patterns of light and dark, colour and movement and send it through the optic nerve.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
How do we see? Information entering the brain through the
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 14

Light_GB - Light Where does light come from Our major light...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online