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Light energy

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by

Harvey Buckle

on 26 July 2018

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Transcript of Light energy

Light energy and reflection
Aim
To know how light travels
To know how light is reflected
To know the difference between translucence and transparent
Translucent and transparent
Look at page 314. Write down the differences between the two words above in the title.
Reflection
Homework
Read about how light travels through a lense
Starter
What can you tell me about this?
Light travelling
Practical with reflection
Watch Mr Harvey
When light beams reflect off a mirror, if we draw the reflected beam
BACKWARDS
through mirror. We see the
TRUE
position of the image we see. This is called a
VIRTUAL IMAGE
.
Light travels in straight lines. It is called a light beam. The light beam can pass through things and also can be reflected from surfaces. If light reflects well from a surface the surface is ______. If light does not reflect well from a surface e.g paper, we say it is scattered.
Virtual images
Full transcript