SCIENCE 8 WORKBOOK Chapter 6 Human Vision Ms. Jamieson 2018 This workbook belongs to:
|
|
- Julia Harvey
- 5 years ago
- Views:
Transcription
1 SCIENCE 8 WORKBOOK Chapter 6 Human Vision Ms. Jamieson 2018 This workbook belongs to: Eric Hamber Secondary 5025 Willow Street Vancouver, BC
2 Table of Contents A. Chapter 6.1 Parts of the eye.. Parts of the eye functions.. The path of light. Why are images upside down on the retina?. Ray diagrams practice How can lenses help correct vision problems? Lenses and light rays review. Correcting vision problems Inside the eye.. Powerpoint notes- how do we see colour? Rods and cones.. Parts of the eye crossword puzzle Science 8 Workbook Ms. Jamieson 2018
3 What s inside your eyeball? Read pages in your textbook. Label the parts of the eye in the diagram below. Then fill in the chart of the functions of each part of the eye. * means the part is not described in the BC Science 8 text. We will go over these parts in class 1) 8) 5) Science 8 Workbook Ms. Jamieson
4 What do the parts of the eye do? # NAME OF THE PART WHAT IT DOES Sclera Choroid Retina Fovea (aka focal point) Iris Blind spot Lens Pupil Cornea Aqueous humour Vitreous humour Optic nerve Ciliary muscle/body opaque tissue tough outer layer of the eye protects the eyeball contains blood vessels that nourish the retina layer of light sensing cells area of retina where light sensing cells are most numerous coloured ring of muscle controls the size of the pupil where optic nerve enters retina there are no light-sensing cells flexible transparent convex structure helps focus light opening in the centre of the eye where light enters transparent part of sclera does most of the focusing of light rays holds cornea away from iris/pupil and nourishes cornea jelly like fluid helps the eye keep its shape, keeps retina in place connects the eye to the brain, transmits signals to brain holds lens in place and changes shape of lens to focus Science 8 Workbook Ms. Jamieson
5 The Path of Light List the parts of the eye that light rays pass through from outside the eye to the retina Cornea Aqueous humour Pupil Lens Vitrous Humour Retina Show how the image of the tree appears on the retina and then in the brain Science 8 Workbook Ms. Jamieson
6 Why are images upside down on the retina? Images are upside down on the retina because of the way convex lenses refract light rays. We can use a ray diagram to show how a lens refracts light rays and creates an image. Use the following instructions to complete the ray diagram of light rays passing through a lens and forming an image on the retina. 1. Light rays reflect off objects in all directions. In this ray diagram we will look at only three light rays, all reflecting from the tip of the arrow. 2. First, label the principal axis, the vertical axis, the focal points and the 2F points on the diagram. 3. These are the rules for how light rays refract through convex lenses: Any incident light ray traveling toward the lens parallel to the principal axis will refract at the vertical axis and then travel through the focal point on the opposite side of the lens. Use a ruler to draw one light ray coming from the tip of the arrow that follows this rule Any incident ray traveling through the focal point on the way to the lens will refract at the vertical axis of the lens and then travel parallel to the principal axis on the other side of the lens. Use a ruler to draw a second light ray from the tip of the arrow that follows this rule Any incident ray that passes through the center of the lens (where the principal axis and vertical axis meet) will continue to travel in the same direction on the other side of the lens. Use a ruler to draw a third light ray from the tip of the arrow that follows this rule The point where the refracted light rays intersect is where the image of the tip of the arrow will form on the retina. Draw the image of the arrow. The base of the image will be on the principal axis and the tip will be where the refracted light rays intersect 4. Is the image upright or upside down?. Is the image larger or smaller than the object?. How far is the object from the lens? 5. Compare the ray diagram you drew with what you already know about how convex lenses form images. Does it make sense? Science 8 Workbook Ms. Jamieson
7 Ray diagrams practice 6. Now draw and label ray diagrams for the images below. Each object is at a different distance from the lens. Label the vertical axis, principal axis, focal points and 2F points. Draw the incident and refracted rays and the image according to the rules on page 4. a) The object is between 1 and 2 focal lengths from the lens: Is the image upright or upside down? Is the image larger or smaller than the object (the arrow)? b) The object is less than 1 focal length from the lens: NOTE: You will need to trace dotted virtual light rays backward from the refracted rays. The point where the virtual rays intersect is the tip of the virtual image of the arrow. Is the image upright or upside down? Is the image larger or smaller than the object (the arrow)? c) The object is at the focal point. NOTE: This will produce no image. Draw the rays to show why. Why do you think no image is produced when the object is at the focal point? 7. Compare the ray diagrams you drew with what you already know about how convex lenses form images. Do these diagrams make sense? Science 8 Workbook Ms. Jamieson
8 How can lenses help correct vision problems? 6.1 Human Vision Science 8 Workbook Ms. Jamieson
9 Lenses and light rays review 1. How do lenses refract light rays? a) How do convex and concave lenses refract light rays? b) How do parallel and diverging incident rays affect where the focal point is in a convex lens? c) How does the thickness of a convex lens affect where the focal point is in a convex lens? 2. Which lens refracts (bends) light more, a thick convex lens or a thin convex lens? 3. List 3 ways that the focal point in the eye can be brought closer (hint: one way involves corrective lenses) 4. List 3 ways that the focal point in the eye can be made farther away (hint: one way involves corrective lenses) Science 8 Workbook Ms. Jamieson
10 Correcting Vision Problems Fill in the chart below with diagrams. Each diagram should show the shape of the eyeball, the shape of the lens, the incident rays, the refracted rays, the focal point, and the corrective lens (if used) Shape of Eyeball Viewing Distant Object Viewing Close Object Normal Eyeball Long Eyeball (Near-sighted or Myopic vision) Long Eyeball with Corrective Lens Short Eyeball (Far-sighted vision) Short Eyeball with Corrective Lens Science 8 Workbook Ms. Jamieson
11 Science 8 Workbook Ms. Jamieson
12 Powerpoint notes - How do we see colour? 6.1 Human Vision 1) How does your eye detect colour? The retina is made up of 2 kinds of Light A. around the of the retina. sensitive to. Nerve cells B. in the of the retina (the fovea). sensitive to different of light. Humans have 3 kinds of cones: Red cones - sensitive to wavelengths Green cones - sensitive to wavelengths Blue cones = sensitive to wavelengths Nerve cells 2) How does your brain know what colours you are seeing? The colour you see is a result of the way your brain interprets the combination of the of light detected by the cones the of light detected by the rods results when one of the 3 types of cones is absent or not functioning. 3) Why do we have a blind spot? Colour the spectrum above What colour are red cones most sensitive to? Why are they called red cones? Science 8 Workbook Ms. Jamieson
13 Rods and Cones Part 1 Use the table at right to answer questions 1-2. Note: pigment is the chemical that detects light in light-sensitive cells 1) Why are rod cells more useful for night vision? 2) Why are cone cells more useful for colour vision? 3) Why is it necessary to have three kinds of cone cells operating in order to have full colour vision? 4) Most mammals, including dogs and cats, cannot see colours. How would the retina of a cat s eye be different from the retina of a human eye? 5) Place the letters of the following descriptions into the appropriate circle: Science 8 Workbook Ms. Jamieson
14 Part 2 Use the graph below to answer questions 6-8 B BW G R Colour the spectrum at left Science 8 Workbook Ms. Jamieson
15 Parts of the Eye Crossword Puzzle Science 8 Workbook Ms. Jamieson
SCIENCE 8 WORKBOOK Chapter 6 Human Vision Ms. Jamieson 2018 This workbook belongs to:
SCIENCE 8 WORKBOOK Chapter 6 Human Vision Ms. Jamieson 2018 This workbook belongs to: Eric Hamber Secondary 5025 Willow Street Vancouver, BC Table of Contents A. Chapter 6.1 Parts of the eye.. Parts of
More informationTopic 4: Lenses and Vision. Lens a curved transparent material through which light passes (transmit) Ex) glass, plastic
Topic 4: Lenses and Vision Lens a curved transparent material through which light passes (transmit) Ex) glass, plastic Double Concave Lenses Are thinner and flatter in the middle than around the edges.
More informationThe Human Eye and a Camera 12.1
The Human Eye and a Camera 12.1 The human eye is an amazing optical device that allows us to see objects near and far, in bright light and dim light. Although the details of how we see are complex, the
More informationChapter 6 Human Vision
Chapter 6 Notes: Human Vision Name: Block: Human Vision The Humane Eye: 8) 1) 2) 9) 10) 4) 5) 11) 12) 3) 13) 6) 7) Functions of the Eye: 1) Cornea a transparent tissue the iris and pupil; provides most
More informationChapter Human Vision
Chapter 6 6.1 Human Vision How Light Enters the Eye Light enters the eye through the pupil. The pupil appears dark because light passes through it without reflecting back Pupil Iris = Coloured circle of
More informationEYE. The eye is an extension of the brain
I SEE YOU EYE The eye is an extension of the brain Eye brain proxomity Can you see : the optic nerve bundle? Spinal cord? The human Eye The eye is the sense organ for light. Receptors for light are found
More informationEYE STRUCTURE AND FUNCTION
Name: Class: Date: EYE STRUCTURE AND FUNCTION The eye is the body s organ of sight. It gathers light from the environment and forms an image on specialized nerve cells on the retina. Vision occurs when
More informationsclera pupil What happens to light that enters the eye?
Human Vision Textbook pages 202 215 Before You Read Some people can see things clearly from a great distance. Other people can see things clearly only when they are nearby. Why might this be? Write your
More informationScience 8 Unit 2 Pack:
Science 8 Unit 2 Pack: Name Page 0 Section 4.1 : The Properties of Waves Pages By the end of section 4.1 you should be able to understand the following: Waves are disturbances that transmit energy from
More informationChapter 24 Geometrical Optics. Copyright 2010 Pearson Education, Inc.
Chapter 24 Geometrical Optics Lenses convex (converging) concave (diverging) Mirrors Ray Tracing for Mirrors We use three principal rays in finding the image produced by a curved mirror. The parallel ray
More informationL. R. & S. M. VISSANJI ACADEMY SECONDARY SECTION PHYSICS-GRADE: VIII OPTICAL INSTRUMENTS
L. R. & S. M. VISSANJI ACADEMY SECONDARY SECTION - 2016-17 PHYSICS-GRADE: VIII OPTICAL INSTRUMENTS SIMPLE MICROSCOPE A simple microscope consists of a single convex lens of a short focal length. The object
More informationSense Organs (Eye) The eye is the sense organ of sight. The eye is shaped like a ball and is located in bony
Sense Organs (Eye) The eye is the sense organ of sight. The eye is shaped like a ball and is located in bony sockets in the skull. It is held in place by six muscles which are joined to the outside of
More informationNovember 14, 2017 Vision: photoreceptor cells in eye 3 grps of accessory organs 1-eyebrows, eyelids, & eyelashes 2- lacrimal apparatus:
Vision: photoreceptor cells in eye 3 grps of accessory organs 1-eyebrows, eyelids, & eyelashes eyebrows: protection from debris & sun eyelids: continuation of skin, protection & lubrication eyelashes:
More informationLenses. A lens is any glass, plastic or transparent refractive medium with two opposite faces, and at least one of the faces must be curved.
PHYSICS NOTES ON A lens is any glass, plastic or transparent refractive medium with two opposite faces, and at least one of the faces must be curved. Types of There are two types of basic lenses. (1.)
More informationClass 10 Science NCERT Exemplar Solutions Human Eye and Colourful World
Class 10 Science NCERT Exemplar Solutions Human Eye and Colourful World Short Answer Questions Question 1. A student sitting at the back of the classroom cannot read clearly the letters written on the
More informationLenses. Images. Difference between Real and Virtual Images
Linear Magnification (m) This is the factor by which the size of the object has been magnified by the lens in a direction which is perpendicular to the axis of the lens. Linear magnification can be calculated
More informationEyeball Model Lab Date Block
Science 8 Name Eyeball Model Lab Date Block Problem: Identify the twelve key parts of the eye and describe their function. Materials: dissecting scissors ping pong ball transparent plastic ordinary scissors
More information30 Lenses. Lenses change the paths of light.
Lenses change the paths of light. A light ray bends as it enters glass and bends again as it leaves. Light passing through glass of a certain shape can form an image that appears larger, smaller, closer,
More informationOptics Review (Chapters 11, 12, 13)
Optics Review (Chapters 11, 12, 13) Complete the following questions in preparation for your test on FRIDAY. The notes that you need are in italics. Try to answer it on your own first, then check with
More informationLife Science Chapter 2 Study Guide
Key concepts and definitions Waves and the Electromagnetic Spectrum Wave Energy Medium Mechanical waves Amplitude Wavelength Frequency Speed Properties of Waves (pages 40-41) Trough Crest Hertz Electromagnetic
More informationIntroduction. Strand F Unit 3: Optics. Learning Objectives. Introduction. At the end of this unit you should be able to;
Learning Objectives At the end of this unit you should be able to; Identify converging and diverging lenses from their curvature Construct ray diagrams for converging and diverging lenses in order to locate
More informationChapter 29/30. Wave Fronts and Rays. Refraction of Sound. Dispersion in a Prism. Index of Refraction. Refraction and Lenses
Chapter 29/30 Refraction and Lenses Refraction Refraction the bending of waves as they pass from one medium into another. Caused by a change in the average speed of light. Analogy A car that drives off
More informationEYE ANATOMY. Multimedia Health Education. Disclaimer
Disclaimer This movie is an educational resource only and should not be used to manage your health. The information in this presentation has been intended to help consumers understand the structure and
More informationEye. Eye Major structural layer of the wall of the eye is a thick layer of dense C.T.; that layer has two parts:
General aspects Sensory receptors ; External or internal environment. A stimulus is a change in the environmental condition which is detectable by a sensory receptor 1 Major structural layer of the wall
More informationChapter 11 Lesson 4 THE EYE
Chapter 11 Lesson 4 THE EYE Eye Openers Museum of Vision You need a couple blank sheets of paper. Label each side #1 How We See #2 Binocular Vision #3 Optical Illusions #4 Persistence of Vision On Packet
More informationIntroduction. The Human Eye. Physics 1CL OPTICAL INSTRUMENTS AND THE EYE SPRING 2010
Introduction Most of the subject material in this lab can be found in Chapter 25 of Serway and Faughn. In this lab, you will make images of images using lenses and the optical bench (Experiment A). IT
More informationGeneral Physics - E&M (PHY 1308) - Lecture Notes. General Physics - E&M (PHY 1308) Lecture Notes
General Physics - E&M (PHY 1308) Lecture Notes Lecture 036: Application of Lenses - the Human Eye SteveSekula, 1 December 2010 (created 30 November 2010) Goals of this lecture no tags conclude the discussion
More informationSheep Eye Dissection
Sheep Eye Dissection Question: How do the various parts of the eye function together to make an image appear on the retina? Materials and Equipment: Preserved sheep eye Scissors Dissection tray Tweezers
More informationSlide 4 Now we have the same components that we find in our eye. The analogy is made clear in this slide. Slide 5 Important structures in the eye
Vision 1 Slide 2 The obvious analogy for the eye is a camera, and the simplest camera is a pinhole camera: a dark box with light-sensitive film on one side and a pinhole on the other. The image is made
More informationMastery. Chapter Content. What is light? CHAPTER 11 LESSON 1 C A
Chapter Content Mastery What is light? LESSON 1 Directions: Use the letters on the diagram to identify the parts of the wave listed below. Write the correct letters on the line provided. 1. amplitude 2.
More informationExam 3--PHYS 151--S15
Name: Class: Date: Exam 3--PHYS 151--S15 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Consider this diagram of the eye and answer the following questions.
More informationVision. The eye. Image formation. Eye defects & corrective lenses. Visual acuity. Colour vision. Lecture 3.5
Lecture 3.5 Vision The eye Image formation Eye defects & corrective lenses Visual acuity Colour vision Vision http://www.wired.com/wiredscience/2009/04/schizoillusion/ Perception of light--- eye-brain
More informationEDULABZ INTERNATIONAL. Light ASSIGNMENT
Light ASSIGNMENT 1. Fill in the blank spaces by choosing the correct words from the list given below : List : compound microscope, yellow, telescope, alter, vitreous humour, time, photographic camera,
More informationHandout G: The Eye and How We See
Handout G: The Eye and How We See Prevent Blindness America. (2003c). The eye and how we see. Retrieved July 31, 2003, from http://www.preventblindness.org/resources/howwesee.html Your eyes are wonderful
More informationLESSON 5 - THE OPTICS OF THE EYE
LESSON 5 - THE OPTICS OF THE EYE Overview: By dissecting a mammalian eye, students will learn how the lens in the eye focuses light to form an image of an object. They will also learn the main parts of
More informationVision. By: Karen, Jaqui, and Jen
Vision By: Karen, Jaqui, and Jen Activity: Directions: Stare at the black dot in the center of the picture don't look at anything else but the black dot. When we switch the picture you can look around
More informationName: Date: Block: Light Unit Study Guide Matching Match the correct definition to each term. 1. Waves
Name: Date: Block: Light Unit Study Guide Matching Match the correct definition to each term. 1. Waves 2. Medium 3. Mechanical waves 4. Longitudinal waves 5. Transverse waves 6. Frequency 7. Reflection
More informationThe Human Brain and Senses: Memory
The Human Brain and Senses: Memory Methods of Learning Learning - There are several types of memory, and each is processed in a different part of the brain. Remembering Mirror Writing Today we will be.
More informationRefraction of Light. Refraction of Light
1 Refraction of Light Activity: Disappearing coin Place an empty cup on the table and drop a penny in it. Look down into the cup so that you can see the coin. Move back away from the cup slowly until the
More informationConverging Lenses. Parallel rays are brought to a focus by a converging lens (one that is thicker in the center than it is at the edge).
Chapter 30: Lenses Types of Lenses Piece of glass or transparent material that bends parallel rays of light so they cross and form an image Two types: Converging Diverging Converging Lenses Parallel rays
More informationLecture Outline Chapter 27. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc.
Lecture Outline Chapter 27 Physics, 4 th Edition James S. Walker Chapter 27 Optical Instruments Units of Chapter 27 The Human Eye and the Camera Lenses in Combination and Corrective Optics The Magnifying
More information11/23/11. A few words about light nm The electromagnetic spectrum. BÓDIS Emőke 22 November Schematic structure of the eye
11/23/11 A few words about light 300-850nm 400-800 nm BÓDIS Emőke 22 November 2011 The electromagnetic spectrum see only 1/70 of the electromagnetic spectrum The External Structure: The Immediate Structure:
More informationThe Special Senses: Vision
OLLI Lecture 5 The Special Senses: Vision Vision The eyes are the sensory organs for vision. They collect light waves through their photoreceptors (located in the retina) and transmit them as nerve impulses
More informationInstructional Resources/Materials: Light vocabulary cards printed (class set) Enough for each student (See card sort below)
Grade Level/Course: Grade 7 Life Science Lesson/Unit Plan Name: Light Card Sort Rationale/Lesson Abstract: Light vocabulary building, students identify and share vocabulary meaning. Timeframe: 10 to 20
More informationHuman Eye Model OS-8477A
Instruction Manual 02-3032A Human Eye Model OS-8477A 800-772-8700 www.pasco.com Table of Contents Contents Quick Start............................................................ Introduction...........................................................
More informationPHGY Physiology. The Process of Vision. SENSORY PHYSIOLOGY Vision. Martin Paré. Visible Light. Ocular Anatomy. Ocular Anatomy.
PHGY 212 - Physiology SENSORY PHYSIOLOGY Vision Martin Paré Assistant Professor of Physiology & Psychology pare@biomed.queensu.ca http://brain.phgy.queensu.ca/pare The Process of Vision Vision is the process
More information12.1. Human Perception of Light. Perceiving Light
12.1 Human Perception of Light Here is a summary of what you will learn in this section: Focussing of light in your eye is accomplished by the cornea, the lens, and the fluids contained in your eye. Light
More informationPHGY Physiology. SENSORY PHYSIOLOGY Vision. Martin Paré
PHGY 212 - Physiology SENSORY PHYSIOLOGY Vision Martin Paré Assistant Professor of Physiology & Psychology pare@biomed.queensu.ca http://brain.phgy.queensu.ca/pare The Process of Vision Vision is the process
More informationPhysics 1202: Lecture 19 Today s Agenda
Physics 1202: Lecture 19 Today s Agenda Announcements: Team problems today Team 12: Kervell Baird, Matthew George, Derek Schultz Team 13: Paxton Stowik, Stacey Ann Burke Team 14: Gregory Desautels, Benjamin
More informationVocabulary & Concepts. retina cornea pupil lens iris optic nerve ciliary muscles aqueous humour vitreous humour
Chapter 3 3.0 Human Eye P. 252-255 BC Science Connections Vocabulary & Concepts retina cornea pupil lens iris optic nerve ciliary muscles aqueous humour sclera vitreous humour Parts of the Eye Here s a
More informationExemplar for Internal Achievement Standard Level 2
Exemplar for internal assessment resource Physics 2.2A for Achievement Standard 91169 Exemplar for Internal Achievement Standard 91169 Level 2 This exemplar supports assessment against: Achievement Standard
More informationPart 1 Investigating Snell s Law
Geometric Optics with Lenses PURPOSE: To observe the refraction of light off through lenses; to investigate the relationship between objects and images; to study the relationship between object distance,
More informationOPTICAL SYSTEMS OBJECTIVES
101 L7 OPTICAL SYSTEMS OBJECTIVES Aims Your aim here should be to acquire a working knowledge of the basic components of optical systems and understand their purpose, function and limitations in terms
More informationPhysical Science Physics
Name Physical Science Physics C/By Due Date Code Period Earned Points PSP 5W4 Seeing Problems (divide by 11) Multiple Choice Identify the letter of the choice that best completes the statement or answers
More informationHUMAN EYE AND COLOURFUL WORLD Notes Physics - Grade 10
HUMAN EYE AND COLOURFUL WORLD Notes Physics - Grade 10 Human Eye Eye is one of the most sensitive sense organs in the human body. Our eye enables us to see this beautiful world. It consists of a lens,
More informationCOW S EYE. dissection. Dissecting a Cow s Eye Step-by-Step Instructions. Safety first!
COW S EYE dissection Dissecting a Cow s Eye Step-by-Step Instructions One way to figure out how something works is to look inside it. To learn about how your eyes work, you can dissect, or take apart,
More informationLight and Applications of Optics
UNIT 4 Light and Applications of Optics Topic 4.1: What is light and how is it produced? Topic 4.6: What are lenses and what are some of their applications? Topic 4.2 : How does light interact with objects
More informationCow Eye Dissection. Online dissection, for kids abstaining:
Cow Eye Dissection Introductory Discussion: Tell the students that we will be learning about what eyes are made of and how they work by dissecting a cow eye. Talk about where the eye comes from, and how
More informationRefraction, Lenses, and Prisms
CHAPTER 16 14 SECTION Sound and Light Refraction, Lenses, and Prisms KEY IDEAS As you read this section, keep these questions in mind: What happens to light when it passes from one medium to another? How
More informationKing Saud University College of Science Physics & Astronomy Dept.
King Saud University College of Science Physics & Astronomy Dept. PHYS 111 (GENERAL PHYSICS 2) CHAPTER 36: Image Formation LECTURE NO. 9 Presented by Nouf Saad Alkathran 36.1 Images Formed by Flat Mirrors
More informationTHE EYE. People of Asian descent have an EPICANTHIC FOLD in the upper eyelid; no functional difference.
THE EYE The eye is in the orbit of the skull for protection. Within the orbit are 6 extrinsic eye muscles, which move the eye. There are 4 cranial nerves: Optic (II), Occulomotor (III), Trochlear (IV),
More informationHoly Cross High School. Medical Physics Homework
Holy Cross High School Medical Physics Homework Homework 1: Refraction 1. A pupil shone light through a rectangular block as shown 75 222 15 40 50 a) The light changes direction as it passes from air to
More informationChapter Introduction. Chapter Wrap-Up. and the Eye
Chapter Introduction Lesson 1 Lesson 2 Lesson 3 Sound Light Chapter Wrap-Up Mirrors, Lenses, and the Eye How do sound and light waves travel and interact with matter? What do you think? Before you begin,
More information10/8/ dpt. n 21 = n n' r D = The electromagnetic spectrum. A few words about light. BÓDIS Emőke 02 October Optical Imaging in the Eye
A few words about light BÓDIS Emőke 02 October 2012 Optical Imaging in the Eye Healthy eye: 25 cm, v1 v2 Let s determine the change in the refractive power between the two extremes during accommodation!
More informationChapter: Sound and Light
Table of Contents Chapter: Sound and Light Section 1: Sound Section 2: Reflection and Refraction of Light Section 3: Mirrors, Lenses, and the Eye Section 4: Light and Color 1 Sound Sound When an object
More informationOptics: Lenses & Mirrors
Warm-Up 1. A light ray is passing through water (n=1.33) towards the boundary with a transparent solid at an angle of 56.4. The light refracts into the solid at an angle of refraction of 42.1. Determine
More informationUNIT SUMMARY: Electromagnetic Spectrum, Color, & Light Name: Date:
UNIT SUMMARY: Electromagnetic Spectrum, Color, & Light Name: Date: Topics covered in the unit: 1. Electromagnetic Spectrum a. Order of classifications and respective wavelengths b. requency, wavelength,
More informationChapter 25: Applied Optics. PHY2054: Chapter 25
Chapter 25: Applied Optics PHY2054: Chapter 25 1 Operation of the Eye 24 mm PHY2054: Chapter 25 2 Essential parts of the eye Cornea transparent outer structure Pupil opening for light Lens partially focuses
More information2 The First Steps in Vision
2 The First Steps in Vision 2 The First Steps in Vision A Little Light Physics Eyes That See light Retinal Information Processing Whistling in the Dark: Dark and Light Adaptation The Man Who Could Not
More informationMaterials Cow eye, dissecting pan, dissecting kit, safety glasses, lab apron, and gloves
Cow Eye Dissection Guide Introduction How do we see? The eye processes the light through photoreceptors located in the eye that send signals to the brain and tells us what we are seeing. There are two
More informationUnit 3: Energy On the Move
14 14 Table of Contents Unit 3: Energy On the Move Chapter 14: Mirrors and Lenses 14.1: Mirrors 14.2: Lenses 14.3: Optical Instruments 14.1 Mirrors How do you use light to see? When light travels from
More informationUnit Two: Light Energy Lesson 1: Mirrors
1. Plane mirror: Unit Two: Light Energy Lesson 1: Mirrors Light reflection: It is rebounding (bouncing) light ray in same direction when meeting reflecting surface. The incident ray: The light ray falls
More informationPHYSICS. Chapter 35 Lecture FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E RANDALL D. KNIGHT
PHYSICS FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E Chapter 35 Lecture RANDALL D. KNIGHT Chapter 35 Optical Instruments IN THIS CHAPTER, you will learn about some common optical instruments and
More information12.1. Human Perception of Light. Perceiving Light
12.1 Human Perception of Light Here is a summary of what you will learn in this section: Focussing of light in your eye is accomplished by the cornea, the lens, and the fluids contained in your eye. Light
More informationCoarse hairs that overlie the supraorbital margins Functions include: Shading the eye Preventing perspiration from reaching the eye
SPECIAL SENSES (INDERA KHUSUS) Dr.Milahayati Daulay Departemen Fisiologi FK USU Eye and Associated Structures 70% of all sensory receptors are in the eye Most of the eye is protected by a cushion of fat
More informationVision. By. Leanora Thompson, Karen Vega, and Abby Brainerd
Vision By. Leanora Thompson, Karen Vega, and Abby Brainerd Anatomy Outermost part of the eye is the Sclera. Cornea transparent part of outer layer Two cavities by the lens. Anterior cavity = Aqueous humor
More informationABO Certification Training. Part I: Anatomy and Physiology
ABO Certification Training Part I: Anatomy and Physiology Major Ocular Structures Centralis Nerve Major Ocular Structures The Cornea Cornea Layers Epithelium Highly regenerative: Cells reproduce so rapidly
More information1. The convex lens will magnify the print, provided the object is not placed beyond 2F, While the concave lens will shrink the print image.
1 P a g e Grade 8 SCIENCE CHATER 6 QUESTIONS 6.1 A page 215 What Did You Find Out? Answers 1. The convex lens will magnify the print, provided the object is not placed beyond 2F, While the concave lens
More informationRefraction and Lenses
Refraction and Lenses Name Q.(a) Figure shows a ray of light entering a glass block. (i) The angle of incidence in Figure is labelled with the letter i. On Figure, use the letter r to label the angle of
More informationGrade 8. Light and Optics. Unit exam
Grade 8 Light and Optics Unit exam Unit C - Light and Optics 1. Over the years many scientists have contributed to our understanding of light. All the properties listed below about light are correct except:
More informationE X P E R I M E N T 12
E X P E R I M E N T 12 Mirrors and Lenses Produced by the Physics Staff at Collin College Copyright Collin College Physics Department. All Rights Reserved. University Physics II, Exp 12: Mirrors and Lenses
More informationused to diagnose and treat medical conditions. State the precautions necessary when X ray machines and CT scanners are used.
Page 1 State the properties of X rays. Describe how X rays can be used to diagnose and treat medical conditions. State the precautions necessary when X ray machines and CT scanners are used. What is meant
More informationLenses. Not in your text book
Lenses Not in your text book Objectives: 1. Students will be able to draw a ray diagram for a lens 2. Students will be able to explain the difference between a real and a virtual image Different Lenses,
More informationGeneral Physics II. Ray Optics
General Physics II Ray Optics 1 Dispersion White light is a combination of all the wavelengths of the visible part of the electromagnetic spectrum. Red light has the longest wavelengths and violet light
More information3. Butter paper is an example for object. (A) a transparent (B) a translucent (C) an opaque (D) a luminous
SETH ANANDRAM JAIPURIA SCHOOL VASUNDHARA, GHAZIABAD SESSION :2017-18 OLYMPIAD WORKSHEET CLASS VIII PHYSICS TOPIC : LIGHT 1. We are able to see objects around us because : (A) the objects absorb all the
More informationLenses- Worksheet. (Use a ray box to answer questions 3 to 7)
Lenses- Worksheet 1. Look at the lenses in front of you and try to distinguish the different types of lenses? Describe each type and record its characteristics. 2. Using the lenses in front of you, look
More informationThe eye & corrective lenses
Phys 102 Lecture 20 The eye & corrective lenses 1 Today we will... Apply concepts from ray optics & lenses Simple optical instruments the camera & the eye Learn about the human eye Accommodation Myopia,
More information11 Human Eye & colourful world IMPORTANT NOTES ANIL TUTORIALS
11 Human Eye & colourful world IMPORTANT NOTES 1. Parts of the Human Eye : (i) Sclerotic is the outermost white fibrous covering of the eye. (ii) Cornea is the transparent front bulging portion of the
More informationIII: Vision. Objectives:
III: Vision Objectives: Describe the characteristics of visible light, and explain the process by which the eye transforms light energy into neural. Describe how the eye and the brain process visual information.
More informationThe Optics of Mirrors
Use with Text Pages 558 563 The Optics of Mirrors Use the terms in the list below to fill in the blanks in the paragraphs about mirrors. reversed smooth eyes concave focal smaller reflect behind ray convex
More informationPhysics Learning Guide Name:
Physics Learning Guide Name: Instructions: Using a pencil, complete the following notes as you work through the related lessons. Show ALL work as is explained in the lessons. You are required to have this
More informationPhysics of the Eye *
OpenStax-CNX module: m42482 1 Physics of the Eye * OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0 Abstract Explain the image formation by
More informationChapter 34: Geometrical Optics (Part 2)
Chapter 34: Geometrical Optics (Part 2) Brief review Optical instruments Camera Human eye Magnifying glass Telescope Microscope Optical Aberrations Phys Phys 2435: 22: Chap. 34, 31, Pg 1 The Lens Equation
More informationAQA P3 Topic 1. Medical applications of Physics
AQA P3 Topic 1 Medical applications of Physics X rays X-ray properties X-rays are part of the electromagnetic spectrum. X-rays have a wavelength of the same order of magnitude as the diameter of an atom.
More informationCHAPTER 11 The Hyman Eye and the Colourful World In this chapter we will study Human eye that uses the light and enable us to see the objects. We will also use the idea of refraction of light in some optical
More informationID: A. Optics Review Package Answer Section TRUE/FALSE
Optics Review Package Answer Section TRUE/FALSE 1. T 2. F Reflection occurs when light bounces off a surface Refraction is the bending of light as it travels from one medium to another. 3. T 4. F 5. T
More informationLearning Intentions: P3 Revision. Basically everything in the unit of Physics 3
Learning Intentions: P3 Revision Basically everything in the unit of Physics 3 P3.1 Medical applications of physics Physics has many applications in the field of medicine. These include the uses of X-rays
More informationUse these words to complete the sentences about light: absorb different diffuse focus prism refraction same slower specula transmit
Aims In the activity you will learn more about how we see, how light interacts with materials, and how we see colour. Task 1: Light Use these words to complete the sentences about light: absorb different
More informationTest Review # 8. Physics R: Form TR8.17A. Primary colors of light
Physics R: Form TR8.17A TEST 8 REVIEW Name Date Period Test Review # 8 Light and Color. Color comes from light, an electromagnetic wave that travels in straight lines in all directions from a light source
More informationRefraction is the when a ray changes mediums. Examples of mediums:
Refraction and Lenses Refraction is the when a ray changes mediums. Examples of mediums: Lenses are optical devices which take advantage of the refraction of light to 1. produces images real and 2. change
More information