Light - AVS-Science

Light - AVS-Science

Light Chapter 46 Light Light is a form of energy. Light can do work i.e a solar panel or Crookes radiometer.

(Light energy can be converted to other forms of energy) Light Luminous objects are a source of light. i.e. The Sun

Non-Luminous objects do not give of their own light. Non-Luminous objects can be seen because light reflects off them. Luminous vs NonLuminous Luminous

Non-Luminous Light Light travels in straight lines. If one piece of card is moved the light can no longer be seen

Light Shadows are formed because light travels in straight lines. White Light White Light is a mixture of 7

different colours called a spectrum. Richard Of York Gave Battle In

Vein Red Orange Yellow Green Blue

Indigo Violet White Light The breaking up of white light is called dispersion. White light can be dispersed using a

triangular glass block called a prism. Reflection Reflection Light bounces back off surfaces. Light reflects in a regular manner off smooth, shiny, polished surfaces.

Reflection The N is called the normal and is perpendicular to the mirror. Angle A = Angle B

A Periscope A periscope can be used to look around obstacles. The mirrors are positioned in the periscope at a 45o angle. Refraction

Refraction is the bending of light as it passes from one medium to another. Note the light ray gets pulled towards the denser substance. Eg Swimming pool.

A Lens A lens is a piece of glass with a curved surface which is used to bend or refract light. Concave A concave lens spreads out the rays

of light. Diverging lens Convex A convex lens bends the rays of light together to a point. Converging lens

Uses of Lenses Concave: Used in glasses to correct short sighted eyes. Convex: Glasses to correct long sighted eyes.

Magnifying glasses. Telescopes Cameras Microscopes

Recently Viewed Presentations

  • Literature Circles - Mrs. Duenas-Clifft's Classes

    Literature Circles - Mrs. Duenas-Clifft's Classes

    Introduction to Literature Circles Challenged Book Project What are Literature Circles? "professional book clubs" small discussion groups of students who are reading the same book each member has a job, which changes each meeting Literature Circles Jobs Discussion Director Illustrator...
  • 20 Century American Music The 1950s th E.J.

    20 Century American Music The 1950s th E.J.

    Popular shows - I Love Lucy, Honeymooners, Father Knows Best, Lassie, and The Adventures of Ozzie and Harriet - introduced characters and families that looked like ideal families. Many people believed that was how most families were.
  • Lighting LEDs with a RASPBERRY PI

    Lighting LEDs with a RASPBERRY PI

    THE pins of the pi. On the Pi we have what are called GPIO pins. GPIO stands for General Purpose Input/Output. Some of the pins have functions like high voltage or low voltage and we can't modify their functions. There...
  • Elements, Compounds & Mixtures - Bath County Schools

    Elements, Compounds & Mixtures - Bath County Schools

    Elements, Compounds & Mixtures. Matter. Multiple . substances. Pure substance. Elements. Compounds. Mixtures. Types of pure substances. Elements. ... D= mixture of elements. F= mixture of compounds. G=mixture of elements & molecules. Make a T-Chart to compare and contrast the...
  • Behavior Change as - Cengage

    Behavior Change as - Cengage

    Counting and recording behavior is a way to validate our own success. Pinpointing a Target Behavior Stranger Test A stranger not familiar with a student could take the definition of a behavior and accurately determine its occurrence at a level...
  • Interactive notebook

    Interactive notebook

    A one-stop shop where you can organize: Teacher notes and examples. student responses to the material. creative analysis and documentation of knowledge attained during the course. any handouts, assignments, quizzes, etc. for easy retrieval and review
  • Graphene Increases Solar Cell Efficiency Nathan Duderstadt, Stoney

    Graphene Increases Solar Cell Efficiency Nathan Duderstadt, Stoney

    is that organic cells are not as efficient as the inorganic cells that are currently on the market. This project aims to address this issue and help to improve efficiency in organic photovoltaic cells. Introduction. Graphene Increases Solar Cell Efficiency....
  • A Class of Problems We use Numerical continuation

    A Class of Problems We use Numerical continuation

    The symmetry is that F(q, ) is invariant to relabeling of the N classes of Z The symmetry group of all permutations on N symbols is SN. The action of SN on and q, L (q, , ) is represented...