Convex and Concave Lenses

Slides:

Advertisements

Similar presentations

Mirror and Lens Properties. Image Properties/Characteristics Image Type: Real or Virtual Image Orientation: Erect or Inverted Image Size: Smaller, Larger,

Advertisements

LIGHT AND LENSES by Ms. Mendoza 5 th Grade Lincoln Elementary.

Materials: Pasco Light Machine and a Sheet of Graph Paper, reflective mirrors.

Grab Bag Wave Vocabulary Mirrors Light, Mirror, and Lens Lenses

Mirrors and Lenses.  How can we see the word on the front of this vehicle written correctly?  Why is it written the way it is?

Curved Mirrors. Two types of curved mirrors 1. Concave mirrors – inwardly curved inner surface that converges incoming light rays. 2. Convex Mirrors –

Grade 8 Science Unit 2: Optics Chapter 6: Lenses refract light to form images.

Optics Can you believe what you see?. Optics Reflection: Light is retransmitted from or “bounces off” an object.

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.

Materials: Pasco Light Machine and a Sheet of Graph Paper, reflective surface, concave lens, convex lens.

Jeopardy Vocabulary 1 Vocabulary 2 ReflectionRefraction Optical Tools Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy.

Chapter 18 Ray Optics.

Physics 014 Images. Topics  Plane mirrors  Spherical mirrors  Thin lenses.

Optics and Light Lenses form images by refracting light.

Basic Optical Devices Mirrors, Lenses Prisms, And Diffraction Gratings.

Curved Lenses SNC2P – Optics. Lenses Lenses are thin pieces of glass or plastic that have at least one curved side. There are two basic types of lenses:

02/06/2016 Lenses and Images LO: to be able to describe images formed by different types of lenses Starter: make a list of any items you can think of that.

Unit 5, Chapter 15 Integrated Science. Unit Five: Light and Optics 15.1 Seeing an Image 15.2 The Human Eye 15.3 Optical Technology Chapter 15 Optics.

Today’s agenda: Death Rays. You must know when to run from Death Rays. Refraction at Spherical Surfaces. You must be able to calculate properties of images.

Ray Diagrams Noadswood Science, 2013.

Converging Lenses Section 4.6 Lesson 13. Lenses A lens is a thin transparent piece of glass or plastic that has at least one curved side –The sides can.

Purpose –To observe the following phenomena about light: light rays reflecting off a mirror and refracting through lenses diff. colored paper under diff.

LENSES AND THE FORMATION OF IMAGES. Lenses We see the world through lenses… Eye glasses = lenses Contacts = lenses Magnifying glasses = lenses Microscopes.

Lenses Convex lenses converge rays of light. Parallel rays converge a fixed distance away from the lens. This is known as the focal length.

How a Microscope Works!. What Do You Do?!?! As we go through the diagram showing how a microscope works, draw the pictures and write the notes down on.

Image Formation. Flat Mirrors  p is called the object distance  q is called the image distance  θ 1 = θ 2 Virtual Image: formed when light rays do.

Images Formed by Lenses Ray Diagrams for Lenses Ray diagrams can be used to predict characteristics of images using 3 rays, just like for concave.

LENSES Write down anything like this!.  Different types of lenses play an important part in our lives. They are used in cameras, telescopes, microscopes,

Lenses Lenses do all the same things mirrors do and use all the same terms and variables. Lenses do all the same things mirrors do and use all the same.

Chapter 18 Mirrors and Lenses. Objectives 18.1 Explain how concave, convex, and plane mirrors form images 18.1 Locate images using ray diagrams, and calculate.

MIMTY 4/4/11 How would your life change if there were no lenses or mirrors? MIMTY.

What happens to an incident ray that passes through the focal point of a concave mirror? An incident ray passing through the focal point is reflected so.

Lenses Lenses _______ light and are usually used to form ________ There are two types: In practice, light is refracted at both surfaces of the lens but.

2-3 Reflection and Refraction

Analysis for Optics Lab  Choose 6 hypothesis/data sections and analyze the hypothesis and the data 1. Briefly summarize the experimental setup 2. Summarize.

Optics Friday, March 6, Unit 8: EM Spectrum/Optics Friday, 3/6  Pick up a sheet of paper (do not write on it…it’s for later)  Draw the diagrams.

Chapter 18 Mirrors and Lenses. Curved Mirrors Concave shaped mirrors cause parallel light rays to converge. Convex shaped mirrors cause parallel light.

Quiz, Lenses Wednesday, March 4, Unit 8: EM Spectrum/Optics Wednesday, 3/4  Draw the mirrors below and label them (concave, convex) Upcoming dates:

Mirrors. Types of mirror There are two types of mirror Plane (flat) Curved Concave (curves in) Convex (curves out)

PHYSICS – Total Internal Reflection and Lenses. LEARNING OBJECTIVES Core Describe the formation of an optical image by a plane mirror, and give its characteristics.

Geometric Optics: Mirrors and Lenses. Mirrors with convex and concave spherical surfaces. Note that θ r = θ i for each ray.

Ray diagrams, lens equation Thursday, April 21, 2016.

Using Lenses. Aims Be able to describe the behavior of light as it passes through a convex lens. Know how to measure the focal length of a convex lens.

RAY DIAGRAMS Steps for drawing a plane mirror ray diagram: 1. A ray that strikes perpendicular to the mirror surface, reflects perpendicular to the mirror.

Chapter Four: Chemistry and Physics Connections 4.1 Elements, Compounds, and Reactions 4.2 Carbon Compounds and Cells 4.3 Light and Living Things.

We can explain how convex and concave lenses work.

OPTICS Refraction in Lenses.

Answer the “4 big questions”.

PHYSICS – Total Internal Reflection and Lenses

Notes 23.3: Lenses and Images

Lenses 4/28/15 Catalyst: How does optical equipment like: microscopes, glasses and telescopes effect light? Reflection: 53 L 53 R.

Chapter 7 Light and Geometric Optics

Unit 8: Light and Optics Chapter 22: Optics

Converging Lenses Section 4.6 Lesson 13.

Curved lenses 13.1, 13.3 SNC 2D1 Mr. Dvorsky.

Waves may reflect diffusely based on…

I really don’t understand these ray diagrams!

Lenses and Mirrors P.O.E. Learning Target: I can demonstrate how convex and concave lenses and mirrors affect the images we see.

Science 8 – Mirrors and Lenses ANSWERS

Lenses A lens is a transparent material (with at least one curved side) that causes light refracts in a predictable and useful way. Each ray is refracted.

Ch.6 Lens (透鏡).

Science 8 – Mirrors and Lenses

LIGHT AND LENSES by Ms. Mendoza 5th Grade Lincoln Elementary

Transparent substances refract light

Warm Up 1) In what two ways can refraction be useful?

Presentation transcript:

Convex and Concave Lenses

PREDICT! Predict: What will happen to the light as it goes through the CONCAVE lens? What will happen to light as it goes through a CONVEX lens? Draw a picture!

Observe: Supplies: Convex Lens (draw / label it) Concave Lens Flashlight Draw what happens as light goes through each lens. Did it match your prediction?

Explain!! Why does this happen? Is it reflection? Refraction? Both? LABEL YOUR DIAGRAM!!!

Concave Lens!

Notes: Focal Point: The point where the refracted light rays converge Notes: Focal Point: The point where the refracted light rays converge. Where is it?

Convex Lens: Where is the Focal Point?

Concave Lens: Is there a Focal Point?

Questions to answer: What’s the difference between a LENS and a MIRROR? What’s the difference between a CONVEX and CONCAVE lens? 3. Explain WHY your reflection is upside-down in a CONCAVE MIRROR (draw a picture).

Compound Lenses ON THE BACK OF YOUR PAPER; Draw a diagram of a compound lens. Predict: What happens as light goes through it? Observe: What really happened? What’s an example of a compound lens?

Lenticular lenses: Used on special TV screens. What do they do?

Lenses and Technology!  3D without glasses!

Convex and Concave Mirrors! Look at your reflection in both sides of the mirror. What does your reflection look like? Why does this happen? – More details tomorrow!