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Light Mr. Skirbst Physical Science Topic 23
Light Ray Model - light travels in straight lines called “rays”
Light Reflection - light “bouncing” off a surface
2 Kinds of Reflection Regular - reflection off a smooth surface (i.e. mirror)
2 Kinds of Reflection Diffuse - reflection off an irregular surface (i.e. foil)
Reflection Mirror - smooth surface that reflects light
3 Types of Mirrors 1. Plane - smooth, flat surface
3 Types of Mirrors 2. Concave - smooth, curved inward
3 Types of Mirrors 3. Convex - smooth, curved outward
Refraction - bending of light due to change in speed - when passing between different types of material
Refraction Prism - a device used to refract light into the colors of the rainbow (ROYGBV)
Lenses Lens - transparent material that refracts light
2 Types of Lenses 1. Convex - thicker in the middle - refracts to a point
2 Types of Lenses 2. Concave - thinner in the middle - refracts outward
Telescopes Telescope - an instrument used to view objects far away
2 Types of Telescopes Refracting - uses lenses to collect light
2 Types of Telescopes Reflecting - uses mirrors to collect light
MIRRORS AND LENSES PAGE 59 OF INB EQ Why is distance important when discussing mirrors and lenses?
SECTIONS 11.7 AND 11.8 REFRACTION & LENSES. REFRACTION What is Refraction? when light passes from one material (aka medium) to another, it bends because.
+. + Lenses and Mirrors Mrs. Gergel + Refraction of light When light rays enter a new medium at an angle the change in speed causes them to bend, or.
Light. These are all LUMINOUS.LUMINOUS What are some sources of light?
LIGHT AND LENSES by Ms. Mendoza 5 th Grade Lincoln Elementary.
Mirrors and Lenses Chapter 23, Section 1. Mirror and Lens Assignment Use p. 668 – 673 in your text Draw the following pictures ◦ Plane mirror ◦ Concave.
Light and Its Uses. Reflection of Light specular (regular) reflection –all light rays that hit a smooth surface are reflected at the same angle diffuse.
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Concave and Convex Mirrors and Lenses What do you notice about the letters painted on this emergency vehicle?
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Mr. Chapman Science 8. The change in direction of light, called refraction, occurs because light travels at different speeds through different materials.
Behavior of Light. Getting the Idea Light is another form of energy. You can see all the objects around you because the sun (or a lamp) is sending out.
Unit 3: Light and Optical Instruments J. Pulickeel January 2007 Lesson 4: Concave and Convex Reflections.
Mirror – a shiny object that reflects light instead of letting the light go through.
Light Section 1. Light Hits an Object When light strikes an object, the light can be reflected, absorbed, or transmitted.
CHAPTER 14 Mirrors and Lenses. Mirrors have a highly reflective surface. Mirrors work by Light striking the mirror and being reflected back. The reflected.
7.6.c Students know light travels in straight lines if the medium it travels through does not change. 7.6.g Students know the angle of reflection of a.
Optics. What is Optics? –the study of how light behaves, or –the collection and use of light to create images. Optical system: Collects light and uses.
LIGHT CH. 18. What is Light? Light is an electromagnetic wave that travels through space requiring no medium.
Sound and Light POWERPOINT!. Photons are tiny bundles of energy that make up light..... Photons.
LENSES Mrs. Franco. Refraction is the bending of light when it moves from one matter to another.
Chapter 5 The Law of reflection allows mirrors to form images.
THIS IS With Host... Your EMLensesMirrorsLightReflectionLight Clues.
Reflection and color, Refraction, Lenses and Prisms 15-3 and 4.
Refraction. Refraction of Light When light waves pass from one medium to the next, its speed changes, causing it to bend. Going from lower to higher index.
Chapter 18: Ray Optics Lisa & Becky. Ray Model of Light Light rays travel in straight lines Light rays cross but do not interact Light rays travel.
Reflection, Refraction, and Absorption Light travels in a straight line. What happens when it hits an object??? It can bounce back (reflect), bend (refract),
Interactions of Light Waves EQ: How are light waves affected by reflection, refraction and diffraction?
Topic 2 : Reflection. Essential Learning Outcome I can use the geometric ray model and the law of reflection to describe and predict angles of reflection.
Star Messages Module A Chapter 2 Grade 6 Science.
Optics and Light Lenses form images by refracting light.
Bellringer What color would a basketball appear to be if under an orange flashlight? What color would it appear to be if under a red flashlight?
April 6, 2005Created by Kristy Lynn Price LIGHT TLW explore what you see when you mix colors of light. TLW describe visible light as a part of the electromagnetic.
Mirrors & Reflection Light We see objects because of reflected light Travels far and fast (3 x 10 8 m/s) Travels in a straight lines, called rays.
Reflection and Mirrors Page 617. Rays Light waves travelling in straight lines.
Tuesday, November 13 th Entry Task Take the next couple of minutes to study for your test You will do the following today: 1.Take the test 2.Turn in the.
What’s up with the following pictures? Lens – a curved, transparent object that forms an image by refracting light. thicker *Convex lens – a lens that.
Mav Mark What are forms of the electromagnetic spectrum?
3.6: Mirrors & Lenses 12/15/14. Part 1: Mirrors A.Light is necessary for eyes to see 1.Light waves spread in all directions from a light. 2.The brain.
__(B.19): Describe how light is absorbed, refracted, and reflected by different surfaces.
By Kristine. An optical device is any technology that uses light. An optical device can be as simple as a mirror, or as complex as the Hubble Space Telescope.
Lights, Mirrors, and Lenses Light is another type of wave that carries energy. A light ray is a narrow beam of light that travels in a straight line. Light.
Mirror and Lenses. A flat, smooth mirror is called a plane mirror. Greek Mythology tell the story of Narcissus. He noticed his image in a pool of water.
Light and Lenses F What can light pass through? Opaque materials that completely block light from passing through ( a textbook) Transparent.
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When light strikes an object it is:. 1) Reflected.
Chapter Four: Chemistry and Physics Connections 4.1 Elements, Compounds, and Reactions 4.2 Carbon Compounds and Cells 4.3 Light and Living Things.
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