LECTURE 8 DOPPLER EFFECT AND SHOCK WAVES
|
|
|
- Claude Watson
- 5 years ago
- Views:
Transcription
1 LECTURE 8 DOPPLER EFFECT AND SHOCK WAVES 15.7 The Doppler effect Sound waves from a moving source A stationary source and a moving observer The Doppler effect for light waves Frequency shift on reflection from a moving object A Doppler ultrasound can detect and measure blood flow.
2 15.7 The Doppler effect! The Doppler effect is a change in frequency due to the motion of the source or observer.! This effect is heard as the pitch of an ambulance siren changes from its approach to after it has passed you by.
3 Quiz: ! Which of the following shows wave fronts of sound wave emitted from a source moving to the right at a constant speed? A B C D E
4 Quiz: answer 4! Which of the following shows wave fronts of sound wave emitted from a source moving to the right at a constant speed? B
5 Quiz: ! Observers A, B, and C listen to a sound form a moving source. The locations of the sound wave crests at a given moment are shown in the figure. Rank the observer according to the frequency of the sound, smallest first.
6 Quiz: answer 6! A < B < C! The wavelength of the sound wave is indicated by the distance between two neighboring crests.! At C, the crests are closer together, indicating the smaller wavelength.! Thus the observed frequency is highest at C since % = ' (, where ) is the speed of the sound which is common for all observers.! This shift in frequency (or wavelength) due to the motion of the wave source and/or observer is called the Doppler effect.
7 15.7 Sound waves from a moving source / Demo! The observed frequency due to the Doppler effect when a source with a frequency! " approaches an observer is given by! # =! " 1 ' " '! If the source recedes, + #! ) =! " 1 + ' " ' ' "! Demo: siren on a string
8 Quiz: ! A siren emits a sound wave with frequency! ". The graph shows the frequency you hear as you stand at rest. Which of the following could be the correct description of the siren s motion? A. It is stationary at your right side for 2 s, switches to your left quickly, and is again stationary at your left side. B. It moves toward you for 2 s, then reverses direction at t = 2 s. C. It moves away from you for 2 s, then reverses direction at t = 2 s. D. It is circling above your head clockwise for 2 s, then reverses direction at t = 2 s.
9 Quiz: answer! It moves away from you for 2 s, then reverses direction at t = 2 s.! If the source approaches,! " = $ % &'( % (! If the source recedes,! ' = $ % &"( % ( Doppler shift to lower frequency means it s receding. Doppler shift to higher frequency means it s approaching.
10 Example ! You are standing by a road, and a police car passes by. The frequency of a police siren is 550 Hz as the police car approaches you, and 450 Hz after it passes you and is receding. If the speed of sound is 343 m/s, how fast is the police car traveling?
11 Quiz: ! A stationary sound source starts emitting a wave in air when observer Andy is stationary with respect to the source. Then Andy starts moving toward the source. Which of the following quantities of the sound wave change to Andy as he starts moving? Choose all that apply. A. Wavelength B. Frequency C. Speed
12 Quiz: answer! Speed and Frequency! The frequency of a source in air is! " = $ %, so the wavelength established in air is & = $ ' (.! The wavelength does not change just because he moves, just like the length of bench or any other object does not change just because he moves.! The speed of sound relative to Andy is ) * = ) + ),.! Andy observes the frequency of! * = $ - % = $.$ / % = $.$ / $ ' ( = 1 + $ / $! ". ),
13 15.7 A stationary source and a moving observer! When an observer is moving relative to the medium, they observe a shift in frequency.! When observer is approaching,! When receding,! " = 1 + & ' &! (! ) = 1 & ' &! ( & '
14 15.7 The Doppler effect for light waves! The Doppler shift is observed in electromagnetic waves as well.! Since electromagnetic waves do not need medium to propagate, only the relative motion of the source and the observer determines the Doppler shift.! The light you detect from a source moving away from you is red shifted to longer wavelengths.! The light you detect from a source moving toward you is blue shifted to shorter wavelengths.
15 Quiz: ! Suppose a moth is approaching a bat. The bat emits a sound wave to detect the motion of the moth. The sound reflects off the moth and travels back to the bat (echo). Compare the frequencies of the sound detected at the moth! ", of the echo detected by the bat! #, and of the source! $ emitted by the bat, smallest first.
16 Quiz: answer!! " <! $ <! %! Since the moth is moving toward the bat, the sound detected at the moth has a higher frequency due to the Doppler effect.! When the moth reflects off the sound, it becomes a moving source, so the bat (the detector) is detects the echo that is further Dopplershifted higher.
17 15.7 Frequency shift on reflection from a moving object! The frequency shift of a wave that is reflected from a moving object is given by " = ±2" & ' ( '
18 Applications of the Doppler effect 18! The Doppler effect has many practical applications: weather radar, speed radar, medical diagnostics, astronomical measurements.! A Doppler ultrasound can detect not only structure but also motion.
19 Quiz: ! A Doppler ultrasound is used to measure the motion of blood in a patient s artery. The probe has a frequency of 5.0 MHz, and the maximum frequency shift on reflection is 400 Hz. What is the maximum speed of the blood in the artery in m/s?
20 Quiz: answer! A Doppler ultrasound is used to measure the motion of blood in a patient s artery. The probe has a frequency of 5.0 MHz, and the maximum frequency shift on reflection is 400 Hz. What is the maximum speed of the blood in the artery in m/s?! The frequency shift of a wave that is reflected from a moving object is given by " = ±2" & ' ( '.! ) * = +',+ - =.// /05 &, 4./0 03/ = m s
21 15.7 Shock waves! A shock wave is produced when a source moves faster than the waves, which causes wavefronts to overlap.! A supersonic source travels faster than the speed of sound.! A shock wave travels with the source. If a supersonic source passes an observer, the shock wave produces a sonic boom.! Vapor cone: Examples: the wake of a boat and the crack of a whip.
12.3 The Doppler Effect
12.3 The Doppler Effect Doppler Effect Fire engine doppler effect video Car doppler effect video Doppler Effect The pitch (frequency) of the horn of a passing car changes from high to low. This is due
Physics Mechanics. Lecture 34 Waves and sound II
1 Physics 170 - Mechanics Lecture 34 Waves and sound II 2 Sound Waves Sound waves are pressure waves in solids, liquids, and gases. They are longitudinal in liquids and gases, and may have transverse components
Chap 12. Sound. Speed of sound is different in different material. Depends on the elasticity and density of the medium. T v sound = v string =
Chap 12. Sound Sec. 12.1 - Characteristics of Sound Sound is produced due to source(vibrating object and travels in a medium (londitudinal sound waves and can be heard by a ear (vibrations. Sound waves
The Doppler effect. Explanation. The Doppler-shifted frequency:
(I) The Doppler effect The Doppler Effect is a phenomenon observed whenever the source of waves is moving with respect to an observer. The Doppler effect can be described as the effect produced by a moving
17.5 Doppler Effect and Sonic Booms *
OpenStax-CNX module: m52445 1 17.5 Doppler Effect and Sonic Booms * Bobby Bailey Based on Doppler Eect and Sonic Booms by OpenStax This work is produced by OpenStax-CNX and licensed under the Creative
Doppler Effect and Sonic
Doppler Effect and Sonic Booms Bởi: OpenStaxCollege The characteristic sound of a motorcycle buzzing by is an example of the Doppler effect. The high-pitch scream shifts dramatically to a lower-pitch roar
Name: Period: Date: Explain why the sound heard by the observer changes regularly. Determine the maximum frequency of the sound heard by the observer.
Name: Period: Date: IB-2 Doppler Effect Practice 1. This question is about the Doppler effect. A stationary loudspeaker emits sound of frequency of 1000 Hz. Nadine attaches the loudspeaker to a string.
THE DOPPLER EFFECT 06 MAY 2014
THE DOPPLER EFFECT 06 MAY 2014 In this lesson we: Lesson Description Discuss the Doppler effect in words and equations Summary The Doppler Effect The Doppler Effect is the apparent change in frequency
Lecture 14 1/38 Phys 220. Final Exam. Wednesday, August 6 th 10:30 am 12:30 pm Phys multiple choice problems (15 points each 300 total)
Lecture 14 1/38 Phys 220 Final Exam Wednesday, August 6 th 10:30 am 12:30 pm Phys 114 20 multiple choice problems (15 points each 300 total) 75% will be from Chapters 10-16 25% from Chapters 1-9 Students
Physics 2c Lecture 16
Physics 2c Lecture 16 Standing Waves Recap of last time The Doppler Effect Waves with moving sources or/and observers Shock waves Standing waves = waves that fit boundary conditions for reflection on both
Doppler Effect and Sonic Booms *
OpenStax-CNX module: m42712 1 Doppler Effect and Sonic Booms * OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0 Abstract Dene Doppler eect,
The Doppler Effect is the change in frequency observed when a source of sound waves is moving relative to an observer.
Doppler Effect The Doppler Effect is the change in frequency observed when a source of sound waves is moving relative to an observer. Examples of the Doppler effect are: Hearing an increase in a car horn
No Brain Too Small PHYSICS
No Brain Too Small PHYSICS Level 3 Physics: Demonstrate understanding of Waves Doppler Effect and Beats - Answers In 03, AS 953 replaced AS 9050. The Mess that is NCEA Assessment Schedules. In AS 9050
Lecture Sound Waves EM Waves. Physics Help Q&A: tutor.leiacademy.org. The Doppler Effect 11/11/2014
Lecture 1102 Sound Waves EM Waves Physics Help Q&A: tutor.leiacademy.org The Doppler Effect The Doppler effect (or Doppler shift) is the change in frequency (or wavelength) of a wave for an observer moving
Reflection & Transmission
Reflection & Transmission when end is fixed, reflected wave in inverted when end is free to move, reflected wave is not inverted General Physics 2 Waves & Sound 1 Reflection & Transmission when a wave
SoundWaves. Lecture (2) Special topics Dr.khitam Y, Elwasife
SoundWaves Lecture (2) Special topics Dr.khitam Y, Elwasife VGTU EF ESK stanislovas.staras@el.vgtu.lt 2 Mode Shapes and Boundary Conditions, VGTU EF ESK stanislovas.staras@el.vgtu.lt ELEKTRONIKOS ĮTAISAI
Doppler E ect Bow and Shock Waves
Doppler E ect Bow and Shock Waves Lana Sheridan De Anza College May 30, 2018 Last time nonsinusoidal waves intensity of a wave sound level Overview sound level & perception of sound with frequency the
General Physics (PHY 2130)
General Physics (PHY 2130) Lecture XII Sound sound waves Doppler effect Standing waves Light Reflection and refraction http://www.physics.wayne.edu/~apetrov/phy2130/ Lightning Review Last lecture: 1. Vibration
General Physics (PHY 2130)
General Physics (PHY 2130) Lecture XII Sound sound waves Doppler effect Standing waves Light Reflection and refraction Lightning Review Last lecture: 1. Vibration and waves Hooke s law Potential energy
Physics 231 Lecture 25
Physics 231 Lecture 25 Spherical waves P Main points of today s I = lecture: 2 4πr Wave Dopper speed shift for a string v + v o ƒ' = ƒ F v = v vs µ Interference of sound waves L Here F is the string tension
Physics 101 (F11) Name: Section: Score: /20
Physics 101 (F11) Q10A Name: Section: Score: /20 1. WILL Channel 12 TV carrier wave was about 200 MHz. What is the wavelength of this electromagnetic wave in vacuum? The speed of light in vacuum is 3 10
Physics 11. Unit 7 (Part 2) The Physics of Sound
Physics 11 Unit 7 (Part 2) The Physics of Sound 1. Sound waves As introduced in the previous section, sound is one of the many types of waves we encounter in our daily lives. It possesses the properties
Wave Motions and Sound
EA Notes (Scen 101), Tillery Chapter 5 Wave Motions and Sound Introduction Microscopic molecular vibrations determine temperature (last Chapt.). Macroscopic vibrations of objects set up what we call Sound
Sound Waves. Sound waves are longitudinal waves traveling through a medium Sound waves are produced from vibrating objects.
Sound Waves Sound waves are longitudinal waves traveling through a medium Sound waves are produced from vibrating objects Introduction Sound Waves: Molecular View When sound travels through a medium, there
Page # Physics 103: Lecture 26 Sound. Lecture 26, Preflight 2. Lecture 26, Preflight 1. Producing a Sound Wave. Sound from a Tuning Fork
Physics 103: Lecture 6 Sound Producing a Sound Wave Sound waves are longitudinal waves traveling through a medium A tuning fork can be used as an example of producing a sound wave A tuning fork will produce
Section 6: Waves. The following maps the videos in this section to the Texas Essential Knowledge and Skills for Physics TAC (c).
Section 6: Waves The following maps the videos in this section to the Texas Essential Knowledge and Skills for Physics TAC 112.39(c). 6.01 Classifications of Waves Physics (7)(A) Physics (7)(B) 6.02 Properties
PHYS Summer Professor Caillault Homework Solutions. Chapter 14
PHYS 1111 - Summer 2007 - Professor Caillault Homework Solutions Chapter 14 5. Picture the Problem: A wave of known amplitude, frequency, and wavelength travels along a string. We wish to calculate the
TYPES OF WAVES. 4. Waves and Sound 1
TYPES OF WAVES Consider a set of playground swings attached by a rope from seat to seat If you sit in the first swing and begin oscillating, this disturbs the equilibrium The connecting ropes cause the
PHYSICS. Chapter 16 Lecture FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E RANDALL D. KNIGHT Pearson Education, Inc.
PHYSICS FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E Chapter 16 Lecture RANDALL D. KNIGHT 2017 Pearson Education, Inc. Chapter 16 Traveling Waves IN THIS CHAPTER, you will learn the basic properties
Simple Harmonic Motion and Waves
Simple Harmonic Motion and Waves Simple Harmonic Motion (SHM) periodic motion that occurs whenever the restoring force is proportional to the displacement and in the opposite direction. Give some example
Longitudinal Waves. Reading: Chapter 17, Sections 17-7 to Sources of Musical Sound. Pipe. Closed end: node Open end: antinode
Longitudinal Waes Reading: Chapter 7, Sections 7-7 to 7-0 Sources o Musical Sound Pipe Closed end: node Open end: antinode Standing wae pattern: Fundamental or irst harmonic: nodes at the ends, antinode
Key Area 6 The Expanding Universe
Multiple hoice Questions 1 10 Key rea 6 The xpanding Universe 1. galaxy is moving away from arth at a velocity of 1 20 x 10 7 ms -1. Light of wavelength 450 nm is emitted from this galaxy. alculate the
Unit 1. The Expanding Universe
Strand K. Astrophysics Unit 1. The Expanding Universe Contents Page The Doppler Effect 2 Redshift 5 The Expanding Universe and the Big Bang 8 K.1.1. The Doppler Effect When an ambulance or a police car
Lecture Sonic Boom.notebook February 08, 2013
A plane flying at sub sonic speed (below the speed of sound), emits sound waves that can be represented like this: Doppler Effect: What would the sound waves look like as the plane approached the speed
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 Checklist 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
Sound, Decibels, Doppler Effect
Phys101 Lectures 31, 32 Sound, Decibels, Doppler Effect Key points: Intensity of Sound: Decibels Doppler Effect Ref: 12-1,2,7. Page 1 Characteristics of Sound Sound can trael through any kind of matter,
Waves Encountering Barriers
Waves Encountering Barriers Reflection and Refraction: When a wave is incident on a boundary that separates two regions of different wave speed, part of the wave is reflected and part is transmitted. Figure
chapter 17 Sound Intensity of sound (Section 17.2) 1. Number of speakers 2. Point source
chapter 17 Sound Intensity of sound (Section 17.2) 1. Number of speakers 2. Point source Standing waves (Section 17.3) 3. Standing waves in air columns Doppler effect (Section 17.4) 4. Doppler shift I
Nicholas J. Giordano. Chapter 13 Sound
Nicholas J. Giordano www.cengage.com/physics/giordano Chapter 13 Sound Sound Sounds waves are an important example of wave motion Sound is central to hearing, speech, music and many other daily activities
Physics 1C. Lecture 13B
Physics 1C Lecture 13B Speed of Sound! Example values (m/s): Description of a Sound Wave! A sound wave may be considered either a displacement wave or a pressure wave! The displacement of a small element
CH 17. Waves II (Sound)
CH 17 Waves II (Sound) [SHIVOK SP211] November 1, 2015 I. Sound Waves A. Wavefronts are surfaces over which the oscillations due to the sound wave have the same value; such surfaces are represented by
Structure of Biological Materials
ELEC ENG 3BA3: Structure of Biological Materials Notes for Lecture #19 Monday, November 22, 2010 6.5 Nuclear medicine imaging Nuclear imaging produces images of the distribution of radiopharmaceuticals
PHY132 Introduction to Physics II Class 2 Outline: i-clicker Discussion Question
PHY132 Introduction to Physics II Class 2 Outline: Waves in 2-D and 3-D Spherical waves and plane waves Index of Refraction Power, Intensity and Decibels The Doppler Effect QuickCheck 20.6 i-clicker Discussion
NATIONAL SENIOR CERTIFICATE GRADE 12 PHYSICAL SCIENCES: PHYSICS (P1) COMMON TEST JUNE 2014
NATIONAL SENIOR CERTIFICATE GRADE 12 PHYSICAL SCIENCES: PHYSICS (P1) COMMON TEST JUNE 2014 MARKS: 100 TIME: 2 hours This question paper consists of 9 pages and 2 data sheets. *PHSCE1* Physical Sciences
the evidence that the size of the observable Universe is changing;
Q. Describe, in as much detail as you can: the evidence that the size of the observable Universe is changing; the evidence that, billions of years ago, all the matter in the Universe was tightly packed
Unit 4 Waves and Sound Waves and Their Properties
Lesson35.notebook May 27, 2013 Unit 4 Waves and Sound Waves and Their Properties Today's goal: I can explain the difference between transverse and longitudinal waves and their properties. Waves are a disturbances
Oscillations - AP Physics B 1984
Oscillations - AP Physics B 1984 1. If the mass of a simple pendulum is doubled but its length remains constant, its period is multiplied by a factor of (A) 1 2 (B) (C) 1 1 2 (D) 2 (E) 2 A block oscillates
Sound Waves. Solutions of Home Work Problems
Chapter 17 Sound Waves. s of Home Work Problems 17.1 Problem 17.8 (In the text book An ultrasonic tape measure uses frequencies above 20.0 M Hz to determine dimensions of structures such as buildings.
Corso di Laurea in Fisica - UNITS ISTITUZIONI DI FISICA PER IL SISTEMA TERRA. Wave propagation FABIO ROMANELLI
Corso di Laurea in Fisica - UNITS ISTITUZIONI DI FISICA PER IL SISTEMA TERRA Wave propagation FABIO ROMANELLI Department of Mathematics & Geosciences University of Trieste romanel@units.it http://moodle2.units.it/course/view.php?id=887
TOPIC: CONSOLIDATION EXERCISES ON SOUND, DOPPLER EFFECT AND LIGHT. QUESTION 1: 10 minutes (Taken from DoE Additional Exemplar P1 2008)
TOPIC: CONSOLIDATION EXERCISES ON SOUND, DOPPLER EFFECT AND LIGHT SECTION A: TYPICAL EXAM QUESTIONS QUESTION 1: 10 minutes (Taken from DoE Additional Exemplar P1 2008) The sketch below shows a stationary
KEY TERMS. compression rarefaction pitch Doppler effect KEY TERMS. intensity decibel resonance KEY TERMS
CHAPTER 12 SECTION 1 Sound Waves Summary The frequency of a sound wave determines its pitch. The speed of sound depends on the medium. The relative motion between the source of waves and an observer creates
PHYSICS 220. Lecture 21. Textbook Sections Lecture 21 Purdue University, Physics 220 1
PHYSICS 220 Lecture 21 Sound Textbook Sections 13.1 13.7 Lecture 21 Purdue University, Physics 220 1 Overview Last Lecture Interference and Diffraction Constructive, destructive Diffraction: bending of
Chapter 2 SOUND WAVES
Chapter SOUND WAVES Introduction: A sound wave (or pressure or compression wave) results when a surface (layer of molecules) moves back and forth in a medium producing a sequence of compressions C and
Mathematical Models of Fluids
SOUND WAVES Mathematical Models of Fluids Fluids molecules roam and collide no springs Collisions cause pressure in fluid (Units: Pascal Pa = N/m 2 ) 2 mathematical models for fluid motion: 1) Bulk properties
INDIANA UNIVERSITY, DEPT. OF PHYSICS P105, Basic Physics of Sound, Spring 2010
Name: Joe E. Physics ID#: 999 999 999 INDIANA UNIVERSITY, DEPT. OF PHYSICS P105, Basic Physics of Sound, Spring 2010 Midterm Exam #1 Thursday, 11 Feb. 2010, 7:30 9:30 p.m. Closed book. You are allowed
PHYS-2020: General Physics II Course Lecture Notes Section VIII
PHYS-2020: General Physics II Course Lecture Notes Section VIII Dr. Donald G. Luttermoser East Tennessee State University Edition 4.0 Abstract These class notes are designed for use of the instructor and
Chapter 14 Waves and Sound. Copyright 2010 Pearson Education, Inc.
Chapter 14 Waes and Sound Units of Chapter 14 Types of Waes Waes on a String Harmonic Wae Functions Sound Waes Sound Intensity The Doppler Effect We will leae out Chs. 14.5 and 14.7-14.9. 14-1 Types of
1. How does the sound produced by a vibrating object in a medium reach your ear?
1. How does the sound produced by a vibrating object in a medium reach your ear? The vibrating object produces a series of compressions and rarefactions, one after the other in the medium. These pulses
SIMPLE HARMONIC MOTION AND WAVES
Simple Harmonic Motion (SHM) SIMPLE HARMONIC MOTION AND WAVES - Periodic motion any type of motion that repeats itself in a regular cycle. Ex: a pendulum swinging, a mass bobbing up and down on a spring.
Light, Energy and Waves
Light, Energy and Waves Transverse waves: Wave Types Waves in which the medium moves at right angles to the direction of the wave Compressional (or longitudinal) waves Waves in which the medium moves back
Producing a Sound Wave. Chapter 14. Using a Tuning Fork to Produce a Sound Wave. Using a Tuning Fork, cont.
Producing a Sound Wave Chapter 14 Sound Sound waves are longitudinal waves traveling through a medium A tuning fork can be used as an example of producing a sound wave Using a Tuning Fork to Produce a
Sound Intensity. Sound Level. Doppler Effect. Ultrasound. Applications
Lecture 20 Sound Hearing Sound Intensity Sound Leel Doppler Eect Ultrasound Applications Sound Waes Sound Waes (Longitudinal waes) When a gas, liquid or solid is mechanically disturbed Sound waes are produced
Physics E1bx April 28 May 5, 2015
Physics E1bx: Assignment for April 28 May 5 Homework #9: Sound and Diffraction Due Tuesday, May 5, at 6:00PM This assignment must be turned in by 6:00PM on Tuesday, May 5. Late homework will not be accepted.
Sound, Decibels, Doppler Effect
Phys Lectures 3, 33 Sound, Decibels, Doppler Eect Key points: ntensity o Sound: Decibels Doppler Eect Re: -,,7. Page Characteristics o Sound Sound can trael through any kind o matter, but not through a
Physics Semester 2 Final Exam Review Answers
Physics Semester 2 Final Exam Review Answers A student attaches a string to a 3 kg block resting on a frictionless surface, and then pulls steadily (with a constant force) on the block as shown below.
3/9/2011. Outline Chapter 7 Waves Water Waves Water Waves. Water waves are really circular. They are an example of Mechanical waves.
Outline Chapter 7 Waves 7-1. Water Waves 7-2. Transverse and Longitudinal Waves 7-3. Describing Waves 7-4. Standing Waves 7-5. Sound 7-6. Doppler Effect 7-7. Musical Sounds 7-8. Electromagnetic Waves 7-9.
Physics 25 Section 2 Exam #1 February 1, 2012 Dr. Alward
1.The tension in a taut rope is increased by a factor of 9, and the mass per length is reduced to one-fourth of its former value.. How does the speed of wave pulses on the rope change, if at all? A) The
CLASS 2 CLASS 2. Section 13.5
CLASS 2 CLASS 2 Section 13.5 Simple Pendulum The simple pendulum is another example of a system that exhibits simple harmonic motion The force is the component of the weight tangent to the path of motion
Wallace Hall Academy
Wallace Hall Academy CfE Higher Physics Unit 1 - Universe Notes Name 1 Newton and Gravity Newton s Thought Experiment Satellite s orbit as an Application of Projectiles Isaac Newton, as well as giving
PHYSICS 231 Sound PHY 231
PHYSICS 231 Sound 1 Travelling (transverse) waves The wave moves to the right, but each point makes a simple harmonic vertical motion oscillation position y position x wave Since the oscillation is in
Class Average = 71. Counts Scores
30 Class Average = 71 25 20 Counts 15 10 5 0 0 20 10 30 40 50 60 70 80 90 100 Scores Chapter 12 Mechanical Waves and Sound To describe mechanical waves. To study superposition, standing waves, and interference.
UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics
UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics Physics 117.3 MIDTERM TEST February 12, 2015 Time: 90 minutes NAME: (Last) Please Print (Given) STUDENT NO.: LECTURE SECTION (please
Temperature and Radiation. What can we learn from light? Temperature, Heat, or Thermal Energy? Kelvin Temperature Scale
What can we learn from light? Temperature Energy Chemical Composition Speed towards or away from us All from the spectrum! Temperature and Radiation Why do different objects give off different forms of
Chapter 17. Waves-II Sound Waves
Chapter 17 Waves-II 17.2 Sound Waves Wavefronts are surfaces over which the oscillations due to the sound wave have the same value; such surfaces are represented by whole or partial circles in a twodimensional
Chapter 16 Sound and Hearing by C.-R. Hu
1. What is sound? Chapter 16 Sound and Hearing by C.-R. Hu Sound is a longitudinal wave carried by a gas liquid or solid. When a sound wave passes through a point in space the molecule at that point will
Lecture 18. Waves and Sound
Lecture 18 Waves and Sound Today s Topics: Nature o Waves Periodic Waves Wave Speed The Nature o Sound Speed o Sound Sound ntensity The Doppler Eect Disturbance Wave Motion DEMO: Rope A wave is a traveling
Honors Physics Semester 2 Final Exam Review Answers
Honors Physics Semester 2 Final Exam Review Answers 1600 kg 800 kg 9 m/s A truck with mass 1600 kg collides with a car with mass 800 kg at rest. They stick together and continue to move to the right. 1.
42 TRAVELING WAVES (A) (B) (C) (D) (E) (F) (G)
42 TRAVELING WAVES 1. Wave progagation Source Disturbance Medium (D) Speed (E) Traveling waves (F) Mechanical waves (G) Electromagnetic waves (D) (E) (F) (G) 2. Transverse Waves have the classic sinusoidal
Honors Physics Semester 2 Final Exam Review
Honors Physics Semester 2 Final Exam Review 1600 kg 800 kg 9 m/s A truck with mass 1600 kg collides with a car with mass 800 kg at rest. They stick together and continue to move to the right. 1. What is
Physics 221: Optical and Thermal Physics Exam 1, Sec. 500, 14 Feb Please fill in your Student ID number (UIN): IMPORTANT
Physics 221: Optical and Thermal Physics Exam 1, Sec. 500, 14 Feb. 2005 Instructor: Dr. George R. Welch, 415 Engineering-Physics, 845-7737 Print your name neatly: Last name: First name: Sign your name:
Lecture 18. Sound Waves: Intensity, Interference, Beats and Doppler Effect.
Lecture 18 Sound Waes: Intensity, Interference, Beats and Doppler Effect. Speed of sound Speed of soun in air, depends on temperature: = (331 + 0.60 T ) m/s where T in C Sound intensity leel β = 10log
Waves ~ Learning Guide
Waves ~ Learning Guide Name: Instructions: Using a pencil, answer the following questions. The Pre-Reading is marked, based on effort, completeness, and neatness (not accuracy). The rest of the assignment
Fluids density Pascal s principle (pressure vs. depth) Equation of continuity Buoyant force Bernoulli s (pressure, velocity, depth)
Final Exam All Finals week in the testing center. 50 multiple choice questions. Equations on the back of the test. Calculators are allowed on the test. There is a practice test in the packet. Exam 1 Review
List of Figures Page Figure 8.1 Figure 8.2: Figure 8.3: Figure 8.4: Figure 8.5: Figure 8.6: Figure 8.7: Figure 8.8: Figure 8.9: Figure 8.
Contents Page Chapter 08 Wave and Geometric Optics... 171 8.0 Introduction...171 8.1 Transverse and Longitudinal Waves...172 8.1.1 Parameters of Wave... 173 8.1.2 The speed of a Travelling Wave... 175
Homework Book. Wave Properties. Huijia Physics Homework Book 1 Semester 2. Name: Homeroom: Physics Class:
Homework Book Wave Properties Huijia Physics Homework Book 1 Semester 2 Name: Homeroom: Physics Class: Week 1 Reflection, Refraction, wave equations 1. If the wavelength of an incident wave is 1.5cm and
Chapter 16. Waves and Sound
Chapter 16 Waes and Sound 16.1 The Nature of Waes 1. A wae is a traeling disturbance. 2. A wae carries energy from place to place. 16.1 The Nature of Waes Transerse Wae 16.1 The Nature of Waes Longitudinal
Theme 5 The Doppler Shift
Theme 5 The Doppler Shift ASTR 101 Prof. Dave Hanes The Surfer s Experience Waves come in to shore perfectly regularly. If you float in place, you bob up and down as each wave passes say, once every 5
Kinds of waves. Mechanical waves. Electromagnetic waves. Matter waves?
Waves Waves are Energy Kinds of waves Mechanical waves Electromagnetic waves Matter waves? What is a wave? A wave is a form of energy transfer: often through a disturbance in the medium Same sine wave
Waves ~ Learning Guide
Waves ~ Learning Guide Name: Instructions: Using a pencil, answer the following questions. The Pre-Reading is marked, based on effort, completeness, and neatness (not accuracy). The rest of the assignment
17 PHYSICS OF HEARING
Chapter 17 Physics of Hearing 647 17 PHYSICS OF HEARING Figure 17.1 This tree fell some time ago. When it fell, atoms in the air were disturbed. Physicists would call this disturbance sound whether someone
UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics
UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics Physics 117.3 MIDTERM TEST Time: 90 minutes NAME: (Last) Please Print (Given) STUDENT NO.: LECTURE SECTION (please check): INSTRUCTIONS:
Reading for Meaning and the Electromagnetic Spectrum!
Earth Science Zimmerman Name: Period: Reading for Meaning and the Electromagnetic Spectrum! HOOK: An astronomer discovers a new galaxy. How can the Doppler Effect be applied to determine if that galaxy
SIMPLE HARMONIC MOTION
WAVES SIMPLE HARMONIC MOTION Simple Harmonic Motion (SHM) Vibration about an equilibrium position in which a restoring force is proportional to the displacement from equilibrium TYPES OF SHM THE PENDULUM
the evidence that the size of the observable Universe is changing;
Q1. Describe, in as much detail as you can: the evidence that the size of the observable Universe is changing; the evidence that, billions of years ago, all the matter in the Universe was tightly packed
Physics 202 Homework 7
Physics 202 Homework 7 May 15, 2013 1. On a cello, the string with the largest linear density (0.0156 kg/m) is the C 171 newtons string. This string produces a fundamental frequency of 65.4 Hz and has
Standing Waves (stationary waves) interference, nodes, antinodes, wavelength is twice the node-to-node distance
Standing Waes Doppler Eect Standing Waes (stationary waes) intererence, nodes, antinodes, waelength is twice the node-to-node distance Standing Waes on Strings - string ixed at both end undamental, harmonics,
TPS. How many Exoplanets have been discovered to date? A B C D
TPS How many Exoplanets have been discovered to date? A. 1-10 B. 11-100 C. 101-500 D. 501-1000 ExoPlanets Objectives What are Exoplanets How do we find Exoplanets How do Exoplanets compare to our solar
Periodic Functions and Waves
Ron Ferril SBCC Physics 101 Chapter 06 20167ul06A Page 1 of 14 Chapter 06 Waves Periodic Functions and Waves Consider a function f of one variable x. That is, we consider a rule by which a number f(x)
Light: Transverse WAVE
Light Longitudinal WAVES Light: Transverse WAVE Light: Particle or wave Photon The Wave Nature of Light 1. Unlike other branches of science, astronomers cannot touch or do field work on their samples.
Episode 702: Red shift
Episode 702: Red shift Changes in wavelength of spectral lines allow us to determine the motion of astronomical objects relative to ourselves. Summary Discussion: Red shift. (10 minutes) Discussion: The