Transcript

Light rays travel in straight lines, radiating out Light rays travel in straight lines, radiating out from the light source.from the light source.If rays are blocked by an opaque object a shadow If rays are blocked by an opaque object a shadow forms where the light cannot reach.forms where the light cannot reach.If the light source is moved closer to the object, If the light source is moved closer to the object, more light is blocked and a larger shadow is more light is blocked and a larger shadow is formed. formed.

SHADOWS ARE FORMED:SHADOWS ARE FORMED:

SUN RIS

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This shadow This shadow is bigger is bigger because the because the light source is light source is closer to the closer to the objet objet

FIRST SHADOW FIRST SHADOW EXPERIMENTEXPERIMENT

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This shadow This shadow is smaller is smaller because the because the light source is light source is far far way to far far way to the objet.the objet.

SECOND SHADOW SECOND SHADOW EXPERIMENTEXPERIMENT

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