Presentation is loading. Please wait.

Presentation is loading. Please wait.

2/22/06 Waves & The Wave Equation CH 15, #33: neat application, but not really waves. Leave till end Thursday: Computer Exercise #2, meet in Olin 269 (Astro.

Published by Modified over 9 years ago

Similar presentations

Presentation on theme: "2/22/06 Waves & The Wave Equation CH 15, #33: neat application, but not really waves. Leave till end Thursday: Computer Exercise #2, meet in Olin 269 (Astro."— Presentation transcript:

1 2/22/06 Waves & The Wave Equation CH 15, #33: neat application, but not really waves. Leave till end Thursday: Computer Exercise #2, meet in Olin 269 (Astro Lab) Friday: Chap. 16: Sec. 16-1 thru 16-5

2 Particles vs. Waves Types of Waves Transverse vs. Longitudinal

3 ConcepTest #29: A string is held at one end, while the other end goes over a pulley and is attached to a mass M, as shown. Transverse waves on the string travel with speed v. If the mass M is quadrupled, what is the new wave speed? M 1.0 4. v (remains same) 2.v /45. 2 v 3.v /26. 4 v

4 ConcepTest #30: Two wave machines are hooked together. The wave machine on the left has a wave speed higher than the wave machine on the right. Consider the following choices: a)A wave pulse comes from the left to the right (high speed region to low speed region). Which of the above is correct for the REFLECTED pulse? b) A wave pulse comes from the left to the right (high speed region to low speed region). Which of the above is correct for the TRANSMITTED pulse? 1.Pulse inverted3. No pulse 2.Pulse not inverted4. Not enough info

5 Wave Speed cares about Medium Example: Light Speed in vacuum = c Speed in medium = v Index of refraction n > 1;  larger n, slower speed Wave traveling from one medium into another Speed changes Incident waves splits up into Reflected wave Transmitted wave High speed  Low speed Reflected Wave INVERTED Low speed  High speed Reflected Wave NOT INVERTED Video Demos

6 Mathematical Description of Waves & the Wave Equation  Wave function describes oscillation about equilibrium Examples: position of slinky coil; pressure of air (sound wave); electric field (EM wave) Wave Equation Partial Derivatives Examples: Don’t panic Wave functions? Concentrate on Harmonic Waves

7 Harmonic Waves “snapshot” Fixed position

8 Definitions “snapshot” Fixed position

9 ConcepTest #31:

10 ConcepTest #32: a)What is the amplitude of this wave? b)What is the wavelength of this wave? c)What is the angular frequency of this wave? d)What is the speed of this wave?

Download ppt "2/22/06 Waves & The Wave Equation CH 15, #33: neat application, but not really waves. Leave till end Thursday: Computer Exercise #2, meet in Olin 269 (Astro."

Similar presentations

Physics AP-B: Waves “Waves seem to really confuse me, particularly what the variables refer to in the equations” “Pretty much the entire chapter is baffling.

Physics AP-B: Waves “Waves seem to really confuse me, particularly what the variables refer to in the equations” “Pretty much the entire chapter is baffling.
Fisica Generale - Alan Giambattista, Betty McCarty Richardson Copyright © 2008 – The McGraw-Hill Companies s.r.l. 1 Chapter 11: Waves Energy Transport.

Fisica Generale - Alan Giambattista, Betty McCarty Richardson Copyright © 2008 – The McGraw-Hill Companies s.r.l. 1 Chapter 11: Waves Energy Transport.
University Physics: Waves and Electricity Ch15. Simple Harmonic Motion Lecture 2 Dr.-Ing. Erwin Sitompul

University Physics: Waves and Electricity Ch15. Simple Harmonic Motion Lecture 2 Dr.-Ing. Erwin Sitompul
Reflection and Refraction.  When a wave moves from one medium into another (reaches a boundary) ◦ Speed of the wave changes  More dense  slower  less.

Reflection and Refraction.  When a wave moves from one medium into another (reaches a boundary) ◦ Speed of the wave changes  More dense  slower  less.
Chapter 16 Wave Motion.

Chapter 16 Wave Motion.
Traveling Waves Lecture 34 Friday. December 5. Exam 4 Average = 88.4.

Traveling Waves Lecture 34 Friday. December 5. Exam 4 Average = 88.4.
Properties of Waves INSANE wave pool in Tokyo. Where's the water? - YouTube INSANE wave pool in Tokyo. Where's the water? - YouTube A wave is a disturbance.

Properties of Waves INSANE wave pool in Tokyo. Where's the water? - YouTube INSANE wave pool in Tokyo. Where's the water? - YouTube A wave is a disturbance.
PHYSICS 231 INTRODUCTORY PHYSICS I

PHYSICS 231 INTRODUCTORY PHYSICS I
Dr. Jie ZouPHY 13711 Chapter 16 Wave Motion (Cont.)

Dr. Jie ZouPHY Chapter 16 Wave Motion (Cont.)
What is a wave? Speed, wave length and frequency.

What is a wave? Speed, wave length and frequency.
8 th grade science! 1. ◦Sound waves, ◦visible light waves, ◦radio waves, ◦microwaves, ◦water waves, ◦sine waves, ◦Coffee waves, ◦Muddy waves ◦telephone.

8 th grade science! 1. ◦Sound waves, ◦visible light waves, ◦radio waves, ◦microwaves, ◦water waves, ◦sine waves, ◦Coffee waves, ◦Muddy waves ◦telephone.
Lecture 11 Chapter 16 Waves I Forced oscillator from last time Slinky example Coiled wire Rope Transverse Waves demonstrator Longitudinal Waves magnetic.

Lecture 11 Chapter 16 Waves I Forced oscillator from last time Slinky example Coiled wire Rope Transverse Waves demonstrator Longitudinal Waves magnetic.
Wave Theory Essential Question: What is a wave?. Answer Me!!!  Give an example of a wave. Then describe what that wave carries.

Wave Theory Essential Question: What is a wave?. Answer Me!!!  Give an example of a wave. Then describe what that wave carries.
Vibrations and Waves Chapter 12.

Vibrations and Waves Chapter 12.
Physics 101: Lecture 21, Pg 1 Physics 101: Lecture 21 Waves Exam 3 l Today’s lecture will cover Textbook Chapter 11.

Physics 101: Lecture 21, Pg 1 Physics 101: Lecture 21 Waves Exam 3 l Today’s lecture will cover Textbook Chapter 11.
Waves. The Nature of Waves What is a mechanical wave?  A wave is a repeating disturbance or movement that transfers energy through matter or space 

Waves. The Nature of Waves What is a mechanical wave?  A wave is a repeating disturbance or movement that transfers energy through matter or space 
Waves Waves. Types of Waves l Longitudinal: The medium oscillates in the same direction as the wave is moving è Sound l Transverse: The medium oscillates.

Waves Waves. Types of Waves l Longitudinal: The medium oscillates in the same direction as the wave is moving è Sound l Transverse: The medium oscillates.
1 By: Mike Maloney 2 Waves are everywhere in nature Sound waves, visible light waves, radio waves, microwaves, water waves, sine waves, telephone chord.

1 By: Mike Maloney 2 Waves are everywhere in nature Sound waves, visible light waves, radio waves, microwaves, water waves, sine waves, telephone chord.
1 Waves and Vibrations. 2 Waves are everywhere in nature Sound waves, visible light waves, radio waves, microwaves, water waves, sine waves, telephone.

1 Waves and Vibrations. 2 Waves are everywhere in nature Sound waves, visible light waves, radio waves, microwaves, water waves, sine waves, telephone.
Waves 5/22/2012. Waves Waves travel and transfer energy in an oscillating fashion (they wiggle). The amplitude, y, of a wave describes its height from.

Waves 5/22/2012. Waves Waves travel and transfer energy in an oscillating fashion (they wiggle). The amplitude, y, of a wave describes its height from.

Similar presentations

Ads by Google