EM waves do not need a medium to travel through EM waves are transverse waves All EM waves travel at the speed of light = 3.

Size: px
Start display at page:

Download "EM waves do not need a medium to travel through EM waves are transverse waves All EM waves travel at the speed of light = 3."

Transcription

1 EM waves do not need a medium to travel through EM waves are transverse waves All EM waves travel at the speed of light = 3.00 x 10 8 m/s So, if they all travel at the same speed, how are they different? Their energies are different! Higher frequency = Higher Energy PRACTICAL APPLICATIONS of EM WAVES????

2 EM Spectrum in the Airport Backscatter X-ray full body scans: - lower energy X-rays - go through clothing, reflect off skin - images with small details results, like nonmetallic weapons & explosives Millimeter Wave full body scans: - millimeter wave technology Full Body scans?!?! - have wavelengths of about a millimeter - are shortest wavelength radio waves & just longer than IR waves - ordinary clothing is transparent to millimeter wavelength radio waves, but flesh is not People are protesting invasion of privacy - goes through clothing to reveal weapons or explosives

3 400 nm 700 nm γ rays x-rays UV Visible Light IR Microwaves Radio waves Radar TV FM -High Frequency -High Energy - Short Wavelength -Low Frequency - Low Energy - Long Wavelength

4 Section Review pg. 365 # 1-5 (due now) and EM worksheet (due today or tomorrow)

5 Due to it s wave-like nature, light has different properties when encountering a medium: 1. Interference 2. Reflection 3. Diffraction 4. Refraction

6 1. When food cooks in the microwave the food gets hot, but the inside of the microwave does not why? 2. The EM waves with wavelengths slightly longer than visible light are. 3. EM waves. How do you know? a. are compressional waves b. must have a medium c. are transverse waves 4. EM radiation with the shortest wavelength is. Longest λ?? 5. Television uses to transmit signals. a. microwaves c. visible light waves b. infrared waves d. radio waves 6. How do we know EM waves exist if we can t see them?

7 If we can t see Electromagnetic Waves how do we know they are there????? How do Microwaves work?? Can we calculate the speed at which microwaves travel???? How could we? What equation do we need?

8

9 A. Waves can interfere with one another. Can be constructive or destructive. 1. Constructive: crests of waves combine to create larger waves (sound waves get louder) Also happens with troughs, compressions, and rarefactions 2. Destructive: crests interfere with troughs to lessen the displacement of each (cancel each other out, sounds get softer) Compressions can also interfere with rarefactions to lessen their displacement

10

11 Obeys the Law of Reflection The angle of incidence is equal to the angle of reflection. A. Angle of incidence: angle between the incident ray and a line normal (perpendicular) to the surface at the point where light strikes B. Angle of reflection: angle between the reflected ray and the normal line

12 LIGHT 1. Light strikes cat s face and reflected into mirror 2. Light then reflects off the mirror into eyes

13 Diffraction: bending around a barrier or the edges of an opening 1. light waves with longer wavelengths diffract more easily than smaller wavelengths 2. light waves can diffract to produce interference patterns

14 Refraction: waves change direction as they enter a medium & begin to travel at a different speed When light enters a more dense medium from one less dense, it bends! The illusion comes from the fact that our eye doesn't know that the light has been refracted when it comes from water into air, and so thinks that it has originated from a point closer to the surface

15 As light enters a prism, it slows and refracts. As it exits, it speeds back up. Prisms create rainbows because the different wavelengths of light slow at different rates and bend at different angles

16 onvex or Converging Lens: microscopes, magnifying glasses, and glasses oncave or Diverging Lens:

17 LAB: Name that Wave Behavior! Rotate through each station and perform the activity Determine which type of wave behavior you see occurring! You can write on the lab sheet Wait to be rotated Answer all questions at the bottom!

18 1. List the 4 behaviors of light waves we talked about yesterday. 2. A prism creates a rainbow by the process of. 3. Waves bending around corners or passing through openings are examples of. diffraction 4. You can see yourself in a mirror because of. reflection 5. Explain the process in #4. Diffraction, interference, refraction & reflection Refraction bends the light as it hits the new medium Light hits your face, reflects to the mirror, & then into your eyes 6. Why does it sometimes look like there is water on the road on a hot day, but the road is really dry? Really hot air above road has different density than the rest of the air, so it REFLECTS & REFRACTS light differently making it look wet!

19 The Doppler Effect

20 Shift in frequency and pitch due to the changing motion of an observer or wave source The Doppler shift can occur: - As a person moves toward sound source or the source moves toward the person and vice versa (moving away)

21

22 Doppler Effect and Pitch As the wave source approaches the observer, the observer perceives a higher frequency than the sound is really producing. Why? Shorter wavelengths & higher frequency when in front of a moving source = higher pitch When the wave source is moving away from the observer, the perceived frequency is lower than really produced. Why? As the sound moves away, the wavelengths increase = Low frequency, Low pitch

23 Doppler Effect in Review 1. Why does the Doppler Effect occur? 2. Specifically, what does the Doppler Effect do to sound and the sound wave? 3. Does the speed of the wave change when the wave source (car) is moving? Explain. 4. When would you hear the actual pitch of the siren of a moving ambulance? Explain.

24 ENRICHMENT OPPORTUNITY???? Goin wayyyy back 1. Find the element with 50 protons. a. What is it? b. How many electrons does it have? c. How many neutrons does it have? 2. What group is Br in? (#) a. What is the specific name for this group? b. What are two element(s) most similar in properties to Br? c. How many valence electrons does Br have? d. Are the elements in this group very reactive? How do you know? 3. What is the difference between ionic and covalent bonding? a. Explain in detail; also provide an example of each.

25 1. Chapter Review: pg. 316 #3, 7-12, 15-16, 18, 21-22, pg. 318 #2, 3, 6, 9 2. Go over wave behavior WS 3. Check Bellringer Quiz 4. Jeopardy!

26 Earthquake waves model both types of waves: transverse and compressional

27 A. Transverse B. Compressional C. Longitudinal D. Both Transverse and Compressional

28 A. Sound B. Light C. Seismic D. Mechanical E. Sonic Boom

29 A. True B. False

30 A. compression B. crest C. trough D. rarefaction

Physical Science Test Form A Test 5: Waves. Matching. 1. diffraction

Physical Science Test Form A Test 5: Waves. Matching. 1. diffraction Physical Science Test Form A Test 5: Waves Matching. 1. diffraction 2. intensity 3. interference 4. mechanical wave 5. medium 6. pitch 7. reflection 8. refraction 9. translucent 10. transverse wave A.

More information

Physics Unit 5 Waves Light & Sound

Physics Unit 5 Waves Light & Sound Physics Unit 5 Waves Light & Sound Wave A rhythmic disturbance that transfers energy through matter and/or a vacuum Material a wave travels through is called the medium 2 types of waves: 1. Transverse

More information

II. Types of Waves A. Transverse waves 1. Can travel with or without matter (medium)

II. Types of Waves A. Transverse waves 1. Can travel with or without matter (medium) SOL: PS. 8 & 9 I. Waves A. Definitionà a disturbance that transfers energy through matter or space II. Types of Waves A. Transverse waves 1. Can travel with or without matter (medium) 2. Moves at rt. angles

More information

Section 1: Sound. Sound and Light Section 1

Section 1: Sound. Sound and Light Section 1 Sound and Light Section 1 Section 1: Sound Preview Key Ideas Bellringer Properties of Sound Sound Intensity and Decibel Level Musical Instruments Hearing and the Ear The Ear Ultrasound and Sonar Sound

More information

Waves. Electromagnetic & Mechanical Waves

Waves. Electromagnetic & Mechanical Waves Waves Electromagnetic & Mechanical Waves Wave Definition: A disturbance that transfers energy from place to place. Molecules pass energy to neighboring molecules who pass energy to neighboring molecules

More information

Block 3: Physics of Waves. Chapter 12: Sound. Relate pitch and loudness to frequency and amplitude Describe how sound travels

Block 3: Physics of Waves. Chapter 12: Sound. Relate pitch and loudness to frequency and amplitude Describe how sound travels Chapter 12: Sound Describe production of sounds Measure the speed of sound Relate pitch and loudness to frequency and amplitude Describe how sound travels Sound is a longitudinal (compression) wave Sound

More information

Term Info Picture. A wave that has both electric and magnetic fields. They travel through empty space (a vacuum).

Term Info Picture. A wave that has both electric and magnetic fields. They travel through empty space (a vacuum). Waves S8P4. Obtain, evaluate, and communicate information to support the claim that electromagnetic (light) waves behave differently than mechanical (sound) waves. A. Ask questions to develop explanations

More information

Waves Review Checklist Pulses 5.1.1A Explain the relationship between the period of a pendulum and the factors involved in building one

Waves Review Checklist Pulses 5.1.1A Explain the relationship between the period of a pendulum and the factors involved in building one 5.1.1 Oscillating Systems Waves Review hecklist 5.1.2 Pulses 5.1.1A Explain the relationship between the period of a pendulum and the factors involved in building one Four pendulums are built as shown

More information

Waves Mechanical vs. Electromagnetic Mechanical Electromagnetic Transverse vs. Longitudinal Behavior of Light

Waves Mechanical vs. Electromagnetic Mechanical Electromagnetic Transverse vs. Longitudinal Behavior of Light PSC1341 Chapter 4 Waves Chapter 4: Wave Motion A.. The Behavior of Light B. The E-M spectrum C. Equations D. Reflection, Refraction, Lenses and Diffraction E. Constructive Interference, Destructive Interference

More information

Section Electromagnetic Waves and the Electromagnetic Spectrum

Section Electromagnetic Waves and the Electromagnetic Spectrum Section 17.6 Electromagnetic Waves and the Electromagnetic Spectrum Electromagnetic Waves Can you name all the colors of the rainbow? Red, Orange, Yellow, Green, Blue, Indigo, Violet Electromagnetic Waves

More information

BVHS Physics: Waves Unit - Targets

BVHS Physics: Waves Unit - Targets BVHS Physics: Waves Unit - Targets Part A: General Wave Properties: Students should be able to 1) describe waves as traveling disturbances which transport energy without the bulk motion of matter. In transverse

More information

1. Transverse Waves: the particles in the medium move perpendicular to the direction of the wave motion

1. Transverse Waves: the particles in the medium move perpendicular to the direction of the wave motion Mechanical Waves Represents the periodic motion of matter e.g. water, sound Energy can be transferred from one point to another by waves Waves are cyclical in nature and display simple harmonic motion

More information

Draw and label this wave: - What do waves transfer? (They do this without transferring what?) What do all electromagnetic waves have in common?

Draw and label this wave: - What do waves transfer? (They do this without transferring what?) What do all electromagnetic waves have in common? What do waves transfer? Draw and label this wave: - (They do this without transferring what?) What do all electromagnetic waves have in common? Name the electromagnetic spectrum from shortest to longest

More information

WAVES & EM SPECTRUM. Chapters 10 & 15

WAVES & EM SPECTRUM. Chapters 10 & 15 WAVES & EM SPECTRUM Chapters 10 & 15 What s a wave? repeating disturbance transfers energy through matter or space Oscillation back & forth movement carries energy w/o transporting matter can travel through

More information

Wave & Electromagnetic Spectrum Notes

Wave & Electromagnetic Spectrum Notes Wave & Electromagnetic Spectrum Notes December 17, 2011 I.) Properties of Waves A) Wave: A periodic disturbance in a solid, liquid or gas as energy is transmitted through a medium ( Waves carry energy

More information

Name: Date Due: Waves. Physical Science Chapter 6

Name: Date Due: Waves. Physical Science Chapter 6 Date Due: Waves Physical Science Chapter 6 Waves 1. Define the following terms: a. periodic motion = b. cycle= c. period= d. mechanical wave= e. medium = f. transverse wave = g. longitudinal wave= h. surface

More information

Physics Learning Guide Name:

Physics 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 information

Waves. A wave is a disturbance which travels through a vacuum or medium (air, water, etc) that contains matter A wave transports ENERGY not matter

Waves. A wave is a disturbance which travels through a vacuum or medium (air, water, etc) that contains matter A wave transports ENERGY not matter Waves and Optics Waves A wave is a disturbance which travels through a vacuum or medium (air, water, etc) that contains matter A wave transports ENERGY not matter Waves Some waves do not need a medium

More information

Name: 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 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 information

A. Amplitude B. Frequency C. Wavelength

A. Amplitude B. Frequency C. Wavelength WAVES Frequency, wavelength, amplitude and electromagnetic spectrum STUDENT BOOK Ch. 4, pp. 92 99 1. For each group of two statements, circle the one that is correct. a) All waves transport energy from

More information

CHAPTER 17 AND 18 CHARACTERISTICS OF EM WAVES LEARNING OBJECTIVES CHARACTERISTICS OF EM WAVES 11/10/2014

CHAPTER 17 AND 18 CHARACTERISTICS OF EM WAVES LEARNING OBJECTIVES CHARACTERISTICS OF EM WAVES 11/10/2014 STUDENT LEARNING GOALS PHYSICAL SCIENCE ELECTROMAGNETISM SC.912.P.10.18 CHAPTER 17 AND 18 Electromagnetic Spectrum, Light, and Sound Goal: Explore the theory of electromagnetism by comparting and contrasting

More information

SCI-PS Light and Optics Pre Assessment Exam not valid for Paper Pencil Test Sessions

SCI-PS Light and Optics Pre Assessment Exam not valid for Paper Pencil Test Sessions SCI-PS Light and Optics Pre Assessment Exam not valid for Paper Pencil Test Sessions [Exam ID:1TL2E1 1 If the angle of incidence is 45, what is the angle of reflection? A 120 B 50 C 90 D 45 2 The wave

More information

Waves & Energy Transfer. Introduction to Waves. Waves are all about Periodic Motion. Physics 11. Chapter 11 ( 11-1, 11-7, 11-8)

Waves & Energy Transfer. Introduction to Waves. Waves are all about Periodic Motion. Physics 11. Chapter 11 ( 11-1, 11-7, 11-8) Waves & Energy Transfer Physics 11 Introduction to Waves Chapter 11 ( 11-1, 11-7, 11-8) Waves are all about Periodic Motion. Periodic motion is motion that repeats after a certain period of time. This

More information

Physics B Waves and Sound Name: AP Review. Show your work:

Physics B Waves and Sound Name: AP Review. Show your work: Physics B Waves and Sound Name: AP Review Mechanical Wave A disturbance that propagates through a medium with little or no net displacement of the particles of the medium. Parts of a Wave Crest: high point

More information

INTRODUCTION. 5. Electromagnetic Waves

INTRODUCTION. 5. Electromagnetic Waves INTRODUCTION An electric current produces a magnetic field, and a changing magnetic field produces an electric field Because of such a connection, we refer to the phenomena of electricity and magnetism

More information

Unit 1.5 Waves. The number waves per second. 1 Hz is 1waves per second. If there are 40 waves in 10 seconds then the frequency is 4 Hz.

Unit 1.5 Waves. The number waves per second. 1 Hz is 1waves per second. If there are 40 waves in 10 seconds then the frequency is 4 Hz. Unit 1.5 Waves Basic information Transverse: The oscillations of the particles are at right angles (90 ) to the direction of travel (propagation) of the wave. Examples: All electromagnetic waves (Light,

More information

Name: Date: Waves and Electromagnetic Spectrum, Sound Waves, and Light Waves Study Guide For Final

Name: Date: Waves and Electromagnetic Spectrum, Sound Waves, and Light Waves Study Guide For Final Name: Date: Waves and Electromagnetic Spectrum, Sound Waves, and Light Waves Study Guide For Final Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A disturbance

More information

1. Draw the Ray Diagram, name lens or mirror shown and determine the SALT for each picture

1. Draw the Ray Diagram, name lens or mirror shown and determine the SALT for each picture Honors Physics Chapter 22 and 23 Test Name: 1. Draw the Ray Diagram, name lens or mirror shown and determine the SALT for each picture 2. Type of Mirror above: i. SALT of image: S: A: L: T: b. Type of

More information

Properties and Applications

Properties and Applications Properties and Applications What is a Wave? How is it Created? Waves are created by vibrations! Atoms vibrate, strings vibrate, water vibrates A wave is the moving oscillation Waves are the propagation

More information

Science 8 Unit 2 Pack:

Science 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 information

General Physics II. Ray Optics

General 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 information

Demonstrate understanding of wave systems. Demonstrate understanding of wave systems. Achievement Achievement with Merit Achievement with Excellence

Demonstrate understanding of wave systems. Demonstrate understanding of wave systems. Achievement Achievement with Merit Achievement with Excellence Demonstrate understanding of wave systems Subject Reference Physics 3.3 Title Demonstrate understanding of wave systems Level 3 Credits 4 Assessment External This achievement standard involves demonstrating

More information

Electromagnetic Waves

Electromagnetic Waves Electromagnetic Waves What is an Electromagnetic Wave? An EM Wave is a disturbance that transfers energy through a field. A field is a area around an object where the object can apply a force on another

More information

Waves, Sound and Light. Grade 10 physics Robyn Basson

Waves, Sound and Light. Grade 10 physics Robyn Basson Waves, Sound and Light Grade 10 physics Robyn Basson Heartbeat Flick in hose pipe What is a pulse? A single disturbance that moves through a medium. Stone in water Other? moving Transverse pulse: A pulse

More information

Ordinary Level SOLUTIONS: WAVES, SOUND AND LIGHT.

Ordinary Level SOLUTIONS: WAVES, SOUND AND LIGHT. Ordinary Level SOLUTIONS: WAVES, SOUND AND LIGHT. 2015 Question 7 [Ordinary Level] (i) Explain the term resonance. transfer of energy between objects of similar natural frequency (ii) Describe a laboratory

More information

Wave Review Questions Updated

Wave Review Questions Updated Name: Date: 1. Which type of wave requires a material medium through which to travel? 5. Which characteristic is the same for every color of light in a vacuum? A. radio wave B. microwave C. light wave

More information

Physics for Kids. Science of Light. What is light made of?

Physics for Kids. Science of Light. What is light made of? Physics for Kids Science of Light What is light made of? This is not an easy question. Light has no mass and is not really considered matter. So does it even exist? Of course it does! We couldn't live

More information

LlIGHT REVIEW PART 2 DOWNLOAD, PRINT and submit for 100 points

LlIGHT REVIEW PART 2 DOWNLOAD, PRINT and submit for 100 points WRITE ON SCANTRON WITH NUMBER 2 PENCIL DO NOT WRITE ON THIS TEST LlIGHT REVIEW PART 2 DOWNLOAD, PRINT and submit for 100 points Multiple Choice Identify the choice that best completes the statement or

More information

The topics in this unit are:

The topics in this unit are: The topics in this unit are: 1 Types of waves 2 Describing waves 3 Wave equation 4 Reflection of waves 5 Refraction 6 Diffraction 7 Light waves (reflection) 8 Total internal reflection 9 - Optical fibres

More information

Name: Per: Date: Ms. Yanuck. Study Guide - Unit Test Waves, Magnetism and Electricity

Name: Per: Date: Ms. Yanuck. Study Guide - Unit Test Waves, Magnetism and Electricity Name: Per: Date: Ms. Yanuck Study Guide - Unit Test Waves, Magnetism and Electricity Write the correct answer on the line: Word Bank: long short waves longitudinal transverse compressions or rarefactions

More information

Longitudinal No, Mechanical wave ~340 m/s (in air) 1,100 feet per second More elastic/denser medium = Greater speed of sound

Longitudinal No, Mechanical wave ~340 m/s (in air) 1,100 feet per second More elastic/denser medium = Greater speed of sound Type of wave Travel in Vacuum? Speed Speed vs. Medium Light Sound vs. Sound Longitudinal No, Mechanical wave ~340 m/s (in air) 1,100 feet per second More elastic/denser medium = Greater speed of sound

More information

Lens: Lenses are usually made of and have 2 curved surfaces. Draw figure 5.23 on Page 191. Label it clearly and use a ruler for the light rays.

Lens: Lenses are usually made of and have 2 curved surfaces. Draw figure 5.23 on Page 191. Label it clearly and use a ruler for the light rays. 5.3 Lenses We have seen lenses in our microscopes, cameras or eyeglasses. Lens: Lenses are usually made of and have 2 curved surfaces. Concave lens: A lens curved inward Thinner at the centre than at the

More information

Warm-Up. Think of three examples of waves. What do waves have in common? What, if anything, do waves carry from one place to another?

Warm-Up. Think of three examples of waves. What do waves have in common? What, if anything, do waves carry from one place to another? Warm-Up Think of three examples of waves. What do waves have in common? What, if anything, do waves carry from one place to another? WAVES Physics Waves If you can only remember one thing Waves transmit

More information

Wallace Hall Academy Physics Department. Waves. Pupil Notes Name:

Wallace Hall Academy Physics Department. Waves. Pupil Notes Name: Wallace Hall Academy Physics Department Waves Pupil Notes Name: Learning intentions for this unit? Be able to state that waves transfer energy. Be able to describe the difference between longitudinal and

More information

Wave Behavior and The electromagnetic Spectrum

Wave Behavior and The electromagnetic Spectrum Wave Behavior and The electromagnetic Spectrum What is Light? We call light Electromagnetic Radiation. Or EM for short It s composed of both an electrical wave and a magnetic wave. Wave or particle? Just

More information

Waves transfer energy NOT matter Two categories of waves Mechanical Waves require a medium (matter) to transfer wave energy Electromagnetic waves no

Waves transfer energy NOT matter Two categories of waves Mechanical Waves require a medium (matter) to transfer wave energy Electromagnetic waves no 1 Waves transfer energy NOT matter Two categories of waves Mechanical Waves require a medium (matter) to transfer wave energy Electromagnetic waves no medium required to transfer wave energy 2 Mechanical

More information

3. Strike a tuning fork and move it in a wide circle around your head. Listen for the pitch of the sound. ANSWER ON YOUR DOCUMENT

3. Strike a tuning fork and move it in a wide circle around your head. Listen for the pitch of the sound. ANSWER ON YOUR DOCUMENT STATION 1 TUNING FORK FUN Do not hit the tuning forks on the table!! You must use the rubber mallet each time. 1. Notice that there are two strings connected to the tuning fork. Loop one end of each string

More information

Science Focus 8. Light and Optical Systems. Pop Quiz Master (5 questions) for each Topic A C B D C C B C C A D B C A B B C C A C A C D B A C B B C D

Science Focus 8. Light and Optical Systems. Pop Quiz Master (5 questions) for each Topic A C B D C C B C C A D B C A B B C C A C A C D B A C B B C D Science Focus 8 Pop Quiz Master (5 questions) for each Topic Light and Optical Systems Answer Key Science Focus 8 Questions Topics 1. 2. 3. 4. 5. Topic 1 - What is Light? A C B D C Topic 2 Reflection C

More information

Chapter 05: Wave Motions and Sound

Chapter 05: Wave Motions and Sound Chapter 05: Wave Motions and Sound Section 5.1: Forces and Elastic Materials Elasticity It's not just the stretch, it's the snap back An elastic material will return to its original shape when stretched

More information

Topic 4: Waves 4.2 Traveling waves

Topic 4: Waves 4.2 Traveling waves Crests and troughs Compare the waves traveling through the mediums of rope and spring. CREST TROUGH TRANSVERSE WAVE COMPRESSION RAREFACTION LONGITUDINAL WAVE Wave speed and frequency The speed at which

More information

4.6.1 Waves in air, fluids and solids Transverse and longitudinal waves Properties of waves

4.6.1 Waves in air, fluids and solids Transverse and longitudinal waves Properties of waves 4.6 Waves Wave behaviour is common in both natural and man-made systems. Waves carry energy from one place to another and can also carry information. Designing comfortable and safe structures such as bridges,

More information

4.6 Waves Waves in air, fluids and solids Transverse and longitudinal waves

4.6 Waves Waves in air, fluids and solids Transverse and longitudinal waves 4.6 Waves Wave behaviour is common in both natural and man-made systems. Waves carry energy from one place to another and can also carry information. Designing comfortable and safe structures such as bridges,

More information

Electromagnetic Waves & the Electromagnetic Spectrum

Electromagnetic Waves & the Electromagnetic Spectrum Electromagnetic Waves & the Electromagnetic Spectrum longest wavelength shortest wavelength The Electromagnetic Spectrum The name given to a group of energy waves that are mostly invisible and can travel

More information

(A) 2f (B) 2 f (C) f ( D) 2 (E) 2

(A) 2f (B) 2 f (C) f ( D) 2 (E) 2 1. A small vibrating object S moves across the surface of a ripple tank producing the wave fronts shown above. The wave fronts move with speed v. The object is traveling in what direction and with what

More information

Slide 1 / 99. Electromagnetic Waves

Slide 1 / 99. Electromagnetic Waves Slide 1 / 99 Electromagnetic Waves Slide 2 / 99 The Nature of Light: Wave or Particle The nature of light has been debated for thousands of years. In the 1600's, Newton argued that light was a stream of

More information

Refraction, Lenses, and Prisms

Refraction, 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 information

WAVES, SOUND AND LIGHT : Ordinary Level Long Questions.

WAVES, SOUND AND LIGHT : Ordinary Level Long Questions. WAVES, SOUND AND LIGHT : Ordinary Level Long Questions. Waves and Sound 2006 Question 8 [Ordinary Level] (i) Describe, using diagrams, the difference between transverse waves and longitudinal waves. (ii)

More information

The Law of Reflection

The Law of Reflection PHY132H1F Introduction to Physics II Class 5 Outline: Reflection and Refraction Fibre-Optics Colour and Dispersion Thin Lens Equation Image Formation Quick reading quiz.. virtual image is. the cause of

More information

ID: A. Optics Review Package Answer Section TRUE/FALSE

ID: 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 information

Electromagnetic (Light) Waves Electromagnetic Waves

Electromagnetic (Light) Waves Electromagnetic Waves Physics R Date: Review Questions 1. An ocean wave traveling at 3 m/s has a wavelength of 1.6 meters. a. What is the frequency of the wave? b. What is the period of the wave? Electromagnetic (Light) Waves

More information

Optics looks at the properties and behaviour of light!

Optics looks at the properties and behaviour of light! Optics looks at the properties and behaviour of light! Chapter 4: Wave Model of Light Past Theories Pythagoras believed that light consisted of beams made up of tiny particles that carried information

More information

Light, Lasers, and Holograms Teleclass Webinar!

Light, Lasers, and Holograms Teleclass Webinar! Welcome to the Supercharged Science Light, Lasers, and Holograms Teleclass Webinar! You can fill out this worksheet as we go along to get the most out of time together, or you can use it as a review exercise

More information

Unit 2: Optics Part 2

Unit 2: Optics Part 2 Unit 2: Optics Part 2 Refraction of Visible Light 1. Bent-stick effect: When light passes from one medium to another (for example, when a beam of light passes through air and into water, or vice versa),

More information

Waves.notebook. April 15, 2019

Waves.notebook. April 15, 2019 Waves You will need a protractor! What is a wave? A wave is a vibratory disturbance that propagates through a medium(body of matter) or field. Every wave has, as its source, a particle vibrating or oscillating.

More information

PHY1 Review for Exam 9. Equations. V = 2πr / T a c = V 2 /r. W = Fdcosθ PE = mgh KE = ½ mv 2 E = PE + KE

PHY1 Review for Exam 9. Equations. V = 2πr / T a c = V 2 /r. W = Fdcosθ PE = mgh KE = ½ mv 2 E = PE + KE Topics Simple Harmonic Motion Springs Pendulums Waves Transverse Longitudinal Pulse Continuous Interference Refraction Diffraction Equations V = 2πr / T a c = V 2 /r F = ma F F = µf N W = Fdcosθ PE = mgh

More information

Chapter 18 The Electromagnetic Spectrum

Chapter 18 The Electromagnetic Spectrum Pearson Prentice Hall Physical Science: Concepts in Action Chapter 18 The Electromagnetic Spectrum 18.1 Electromagnetic Waves Objectives: 1. Describe the characteristics of electromagnetic waves in a vacuum

More information

ELECTROMAGNETIC WAVES AND THE EM SPECTRUM MR. BANKS 8 TH GRADE SCIENCE

ELECTROMAGNETIC WAVES AND THE EM SPECTRUM MR. BANKS 8 TH GRADE SCIENCE ELECTROMAGNETIC WAVES AND THE EM SPECTRUM MR. BANKS 8 TH GRADE SCIENCE ELECTROMAGNETIC WAVES Do not need matter to transfer energy. Made by vibrating electric charges. When an electric charge vibrates,

More information

National 3 Physics Waves and Radiation. 1. Wave Properties

National 3 Physics Waves and Radiation. 1. Wave Properties 1. Wave Properties What is a wave? Waves are a way of transporting energy from one place to another. They do this through some form of vibration. We see waves all the time, for example, ripples on a pond

More information

MODULE P6: THE WAVE MODEL OF RADIATION OVERVIEW

MODULE P6: THE WAVE MODEL OF RADIATION OVERVIEW OVERVIEW Wave behaviour explains a great many phenomena, both natural and artificial, for all waves have properties in common. The first topic introduces a basic vocabulary for describing waves. Reflections

More information

GraspIT Questions AQA GCSE Physics Waves

GraspIT Questions AQA GCSE Physics Waves A Waves in air, fluids and solids 1. The diagrams below show two types of wave produced on a slinky spring. A B a. Which one is a transverse wave? (1) Wave B b. What is the name of the other type of wave?

More information

Note on Posted Slides. Fermat s Principle of Least Time. History of Light. Law of Reflection The angle of reflection equals the angle of incidence.

Note on Posted Slides. Fermat s Principle of Least Time. History of Light. Law of Reflection The angle of reflection equals the angle of incidence. Note on Posted Slides These are the slides that I intended to show in class on Thu. Apr. 3, 2014. They contain important ideas and questions from your reading. Due to time constraints, I was probably not

More information

Reflection and Refraction of Light

Reflection and Refraction of Light Reflection and Refraction of Light Physics 102 28 March 2002 Lecture 6 28 Mar 2002 Physics 102 Lecture 6 1 Light waves and light rays Last time we showed: Time varying B fields E fields B fields to create

More information

Physics: Waves, Sound/Light, Electromagnetic Waves, Magnetism, Mains Electricity and the National Grid

Physics: Waves, Sound/Light, Electromagnetic Waves, Magnetism, Mains Electricity and the National Grid 6.7 Describe the method to measure the speed of sound in air and the speed of ripples on the water surface 7.5 Link the properties of EM waves to their practical application (triple 7.6 Apply knowledge

More information

Descriptors crest(positive), trough (negative), wavelength, amplitude

Descriptors crest(positive), trough (negative), wavelength, amplitude Review of Waves Definition transfer of energy through a medium Pulse single disturbance Wave repeated or periodic disturbance Medium a substance or material which carries the wave Particle displacement

More information

Light. In this unit: 1) Electromagnetic Spectrum 2) Properties of Light 3) Reflection 4) Colors 5) Refraction

Light. In this unit: 1) Electromagnetic Spectrum 2) Properties of Light 3) Reflection 4) Colors 5) Refraction Light In this unit: 1) Electromagnetic Spectrum 2) Properties of Light 3) Reflection 4) Colors 5) Refraction Part 1 Electromagnetic Spectrum and Visible Light Remember radio waves are long and gamma rays

More information

Light Energy. By: Genevieve Rickey 5th Grade Mrs. Branin 2016

Light Energy. By: Genevieve Rickey 5th Grade Mrs. Branin 2016 Light Energy By: Genevieve Rickey 5th Grade Mrs. Branin 2016 Everyone has probably turned on a light before, but have you ever thought about what light is? Light is a form of energy that is reflected from

More information

AP Physics B (Princeton 15 & Giancoli 11 & 12) Waves and Sound

AP Physics B (Princeton 15 & Giancoli 11 & 12) Waves and Sound AP Physics B (Princeton 15 & Giancoli 11 & 12) Waves and Sound Preview What are the two categories of waves with regard to mode of travel? Mechanical Electromagnetic Which type of wave requires a medium?

More information

Human Retina. Sharp Spot: Fovea Blind Spot: Optic Nerve

Human Retina. Sharp Spot: Fovea Blind Spot: Optic Nerve I am Watching YOU!! Human Retina Sharp Spot: Fovea Blind Spot: Optic Nerve Human Vision Optical Antennae: Rods & Cones Rods: Intensity Cones: Color Energy of Light 6 10 ev 10 ev 4 1 2eV 40eV KeV MeV Energy

More information

Fill in the blanks. Reading Skill: Compare and Contrast - questions 3, 17

Fill in the blanks. Reading Skill: Compare and Contrast - questions 3, 17 Light and Color Lesson 9 Fill in the blanks Reading Skill: Compare and Contrast - questions 3, 17 How Do You Get Color From White Light? 1 A(n) is a triangular piece of polished glass that refracts white

More information

ABC Math Student Copy

ABC Math Student Copy Page 1 of 17 Physics Week 9(Sem. 2) Name Chapter Summary Waves and Sound Cont d 2 Principle of Linear Superposition Sound is a pressure wave. Often two or more sound waves are present at the same place

More information

Sound Waves Speed Intensity Loudness Frequency Pitch Resonance Sound Waves

Sound Waves Speed Intensity Loudness Frequency Pitch Resonance Sound Waves Sound Waves Speed Intensity Loudness Frequency Pitch Resonance 13.2 Sound Waves Sound Waves Sound waves are longitudinal waves. Behaviors of sound can be explained with a few properties: Speed Intensity

More information

Life Science Chapter 2 Study Guide

Life 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 information

Light, Lasers, and Holograms Teleclass Webinar!

Light, Lasers, and Holograms Teleclass Webinar! Welcome to the Supercharged Science Light, Lasers, and Holograms Teleclass Webinar! You can fill out this worksheet as we go along to get the most out of time together, or you can use it as a review exercise

More information

Light sources can be natural or artificial (man-made)

Light sources can be natural or artificial (man-made) Light The Sun is our major source of light Light sources can be natural or artificial (man-made) People and insects do not see the same type of light - people see visible light - insects see ultraviolet

More information

$100 $400 $400 $400 $500

$100 $400 $400 $400 $500 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 MOVING IN WAVES PURE ENERGY! WHAT S THE FREQUENCY, KENNETH? USE IT OR LOSE IT

More information

v = λf 1. A wave is created on a Slinky such that its frequency is 2 Hz and it has a wavelength of 1.20 meters. What is the speed of this wave?

v = λf 1. A wave is created on a Slinky such that its frequency is 2 Hz and it has a wavelength of 1.20 meters. What is the speed of this wave? Today: Questions re: HW Examples - Waves Wave Properties > Doppler Effect > Interference & Beats > Resonance Examples: v = λf 1. A wave is created on a Slinky such that its frequency is 2 Hz and it has

More information

Introductory Physics, High School Learning Standards for a Full First-Year Course

Introductory Physics, High School Learning Standards for a Full First-Year Course Introductory Physics, High School Learning Standards for a Full First-Year Course I. C ONTENT S TANDARDS 4.1 Describe the measurable properties of waves (velocity, frequency, wavelength, amplitude, period)

More information

LIGHT. ENERGY FOR LIFE 2 Presented by- Ms.Priya

LIGHT. ENERGY FOR LIFE 2 Presented by- Ms.Priya LIGHT ENERGY FOR LIFE 2 Presented by- Ms.Priya VOCABULARY 1. Opaque 2. Transparent 3. Translucent 4. Refraction 5. Reflection 6. Ray 7. Image 8. Virtual image 9. Medium 10.Vacuum 11. Lens 12. Spectrum

More information

Section Electromagnetic Waves and the Electromagnetic Spectrum

Section Electromagnetic Waves and the Electromagnetic Spectrum Section 18.6 Electromagnetic Waves and the Electromagnetic Spectrum Electromagnetic Waves Electromagnetic Waves Electromagnetic waves are transverse waves produced by the motion of electrically charged

More information

Crave the Wave, Feb 16, 2008

Crave the Wave, Feb 16, 2008 Crave the Wave ANSWER KEY Mentor Invitational Feb 16, 2008 Page 1 of 14 Crave the Wave, Feb 16, 2008 Mentor Invitational ANSWER KEY Scoring: Points will be awarded for the accuracy and quality of the responses.

More information

Bike Generator Project

Bike Generator Project Bike Generator Project Each lab section will build 1 bike generator Each lab group will build 1 energy board Connect and test energy board and bike generator Create curriculum materials and demos to teach

More information

Waves. Waves, Sound, & Light. Types&of&Waves. Types of Waves

Waves. Waves, Sound, & Light. Types&of&Waves. Types of Waves Waves PHY1014/1024 Physical Science Lecture 9: Waves, Sound, & Light Professor Kenny L. Tapp Waves&are&disturbances&(energy)&that& propagate&(move)& Waves&involve&a&oscilla8on&of&something& about&an&equilibrium&point

More information

Waves And Electromagnetic Spectrum Answer Key

Waves And Electromagnetic Spectrum Answer Key We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with waves and electromagnetic

More information

Name. Light Chapter Summary Cont d. Refraction

Name. Light Chapter Summary Cont d. Refraction Page 1 of 17 Physics Week 12(Sem. 2) Name Light Chapter Summary Cont d with a smaller index of refraction to a material with a larger index of refraction, the light refracts towards the normal line. Also,

More information

Topic 1 - What is Light? 1. Radiation is the type of energy transfer which does not require... A matter B heat C waves D light

Topic 1 - What is Light? 1. Radiation is the type of energy transfer which does not require... A matter B heat C waves D light Grade 8 Unit 1 Test Student Class Topic 1 - What is Light? 1. Radiation is the type of energy transfer which does not require... A matter B heat C waves D light 2. Light-producing technologies, such as

More information

Make a Refractor Telescope

Make a Refractor Telescope Make a Refractor Telescope In this activity students will build, and observe with, simple refractory telescope providing an interactive introduction to light, lenses and refraction. LEARNING OBJECTIVES

More information

ABO Certification Training. Part II: Basic Optical Principles

ABO Certification Training. Part II: Basic Optical Principles ABO Certification Training Part II: Basic Optical Principles Metric System of Measurement One meter is equal to: 39.37 inches One inch is equal to: 25.4 millimeters (mm) One dollar is equal to: One meter

More information

Electromagnetic Waves Chapter Questions

Electromagnetic Waves Chapter Questions Electromagnetic Waves Chapter Questions 1. Sir Isaac Newton was one of the first physicists to study light. What properties of light did he explain by using the particle model? 2. Who was the first person

More information

If you forgot about the homework due today: textbook page 542 data analysis questions, I'll collect them tomorrow along with binder pages

If you forgot about the homework due today: textbook page 542 data analysis questions, I'll collect them tomorrow along with binder pages Light & the Electromagnetic Spectrum Electromagnetic Waves Electromagnetic waves > transverse waves consisting of changing electric & magnetic fields; carry energy from place to place; differ from mechanical

More information

High frequency sounds, beyond the range of human hearing, are called ultrasound.

High frequency sounds, beyond the range of human hearing, are called ultrasound. Mr Downie 2014 1 Sound Waves To produce a sound the particles in an object must vibrate. This means that sound can travel through solids, liquids and gases. Sound cannot travel through a vacuum as it contains

More information