Zachary Camp Mr. Seppanen Grade 5

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Presentation transcript:

Zachary Camp Mr. Seppanen Grade 5 Light Energy Zachary Camp Mr. Seppanen Grade 5

Light Light is needed for us to see. Every thing makes light or reflects light.

Laws of Light Light travels in waves. When it travels straight, it is called a light ray are disturbed or bent, they change direction. It light hit smooth shiny surface like a mirror , it is reflected. The angle between an incoming light ray and a surface equals the angle between the reflected light ray and the surface.

Mirrors that curve in on the shiny side. Concave Mirrors Mirrors that curve in on the shiny side.

Mirrors that curve out on the shiny side. Convex mirrors Mirrors that curve out on the shiny side.

Polarization When materials only allow one direction of light waves to pass through them the effect is called polarization.

Light and Mirrors Review Light rays bouncing off a mirror reflect a picture called a(n) Image . Although reflections in a flat mirror look real, they are reversed from right to left. Signs made by "mirror writing" can be read correctly when viewed in a(n) mirror. Telescopes often use _________ mirrors. They curve __ on the shiny side. If these mirrors are used to ________, they give a close-up view. You've probably seen _______ mirrors used as a store's security system. They curve out on the shiny side. Out Image Concave Reversed Mirror In Magnify

Translucent What happens when light passes through?

Opaque What happens when light passes through?

Spectrum Define spectrum

Primary Colors What are they?

Primary Pigments Magenta Yellow Cyan

Light and Color Review Magenta Prism Colors Rainbow Primary Drops Sir Isaac Newton discovered that when light goes through a(n) _________ it reflects a band of rainbow colors. He named this color band a(n) ________. White sunlight is a mixture of many ________. The prism _________ each color at a different angle. Water _________ break up rays of sunlight into different colors. When this occurs, a(n) ________ forms in the sky. We can create these colors ourselves by mixing _________ pigments. These include yellow, _________, and cyan. Magenta Prism Colors Rainbow Primary Drops Spectrum Refracts