Science Unit 3 Light and Optica Systems Review Booket n Action 8 1.0 Expanations, nventions & nvestigations about Light and Vision Key Concepts Scientific experiments to expain how ight and vision work Optica devices teescopes and microscopes have ead to astronomy and microbioogy Outine a brief Timeine History of Views about Light & Astronomy Ancient Times 1 ST Century 1000 AD (Midde Ages) 1670 1676 1920 s What are the four basic properties of ight?
Science Unit 3 Light and Optica Systems Review Booket n Action 8 Outine a brief History of the nvention of Optica Devices http://members.ao.com/wsrnet/d1/hist.htm 1300 AD 1595 17 th Century 1600 1854 1985 1990 Briefy outine the advantages of each Optica Device shown here Microscope Teescope Binocuar
Science Unit 3 Light and Optica Systems Review Booket n Action 8 2.0 Light behaves in predictabe ways. Key Concepts Ray diagrams are used to describe ight The Ange of ncidence equas the Ange of Refection Concave mirrors converge ight to a foca point (headights) Convex mirrors diverge, or spread ight out Refraction ight is bent when it passes to and from areas of different densities Concave and Convex enses are optica devices that refract ight to form images Use a ray diagram to show how ight causes a shadow. Expain the difference between transparent, transucent and opaque materias. What is meant by uminous? What is meant by non-uminous? dentify each of the foowing types of refection
Science Unit 3 Light and Optica Systems Review Booket n Action 8 ustrate the Law of Refection and compete the statement beow the iustration Light Source Pane Mirror The Law of Refection states that ustrate with ray diagrams what happens when ight strikes each of the foowing Concave Mirrors (p.197) Convex Mirrors (p. 199) ustrate how an image is formed in a concave mirror Object far from foca point Concave Mirror mages (p.198) Object at foca point Object between foca point and mirror
Science Unit 3 Light and Optica Systems Review Booket n Action 8 ustrate the Law of Refraction and compete the statement Refraction occurs because of changes in the. actua ocation The Law of Refraction states that What is a Mirage and what causes it? Lenses refract ight ustrate what happens to ight passing through each ens and describe it beow. Concave Lens mage Formation with a Convex ens (p.208) Object far from foca point Convex Lens Object near foca point Object between foca point and ens
Science Unit 3 Light and Optica Systems Review Booket n Action 8 3.0 Eectromagnetic Spectrum Wave Theory Key Concepts Light has the properties of a wave Visibe ight has different waveengths and forms the coors of the rainbow Eectromagnetic spectrum aso incudes (invisibe ight) radio waves, microwaves, infrared, utravioet, X-rays, gamma ray Radio waves carry the east energy gamma rays the most energy Visibe ight can be produced naturay (biouminescence, sunight) & artificiay (phosphorescence, incandescence and forescence) White ight combines red ight green ight bue ight Briefy expain the wave mode of ight? (Use the waveength terminoogy provided) What is the mathematica reationship between the speed, waveength and frequency of a wave? ustrate (with coors) what happens to white ight when it is passed through a prism?
Science Unit 3 Light and Optica Systems Review Booket n Action 8 The eectromagnetic spectrum shows us what different forms of energy are avaiabe to us. Use the tabe to iustrate and describe various uses of each form of eectromagnetic energy. Radio waves Microwaves nfrared waves Utravioet Light (UV) Practica Appications of Eectromagnetic Radiation X-Rays Gamma Radiation Radar Gun Sources of Light (pgs. 222-225) dentify the sources and give exampes of each Artificia Sources of Light Natura Sources of Light
Science Unit 3 Light and Optica Systems Review Booket n Action 8 dentify the coors when added together produce white ight? (by cooring the appropriate parts of the circes beow) What are the Primary coors of ight? What are the secondary coors of ight? What is the Theory of Coor Addition? Briefy expain how a teevision works.
Science Unit 3 Light and Optica Systems Review Booket n Action 8 4.0 Eyes and Cameras capture mages using Light Properties Key Concepts Simiarities designed to capture and focus ight to form an image on a ight-sensitive materia nsects have compound eyes made of many tiny enses Digita images are made by a computer, which converts the image to pixes (a set of numbers) Labe the parts of the eye Labe the parts of a camera Expain how the eye and the camera are simiar in what they do and how they do it. (Use this iustration to hep in your expanation)
Science Unit 3 Light and Optica Systems Review Booket n Action 8 What is the function of the ciiary musces in the eye? ustrate with ray diagrams how vision probems can be corrected with enses. Norma Vision (mage formation) Myopia Nearsightedness (Myopia) corrected with Lens Hyperopia Farsightedness (Hyperopia) corrected with Lens Expain how night vision gogges work. How can you find your Bind Spot?
Science Unit 3 Light and Optica Systems Review Booket n Action 8 dentify some Advantages and Disadvantages of each type and which animas woud have a particuar type. Type of Eye Advantage Disadvantage Animas How is a stadium image made? What are pixes and resoution?