13 intro to waves
TRANSCRIPT
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 1/29
INTRODUCTION TO
WAVESTOPIC 13 : GENERAL WAVE PROPERTIES
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a
i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
1Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 2/29
WHAT IS A WAVE ?
Water Waves Hand Wave Wavy Hair P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a
i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
2Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 3/29
WAVE MOTION
A disturbance that carries energy
from one place to another.
Wave
Original Sourceof A Wave
Any form of
vibrations P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
3Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 4/29
EXAMPLES OF WAVES
Water Waves Hand Wave Wavy HairThese examples are of visible form of waves!
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
4Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 5/29
EXAMPLES OF WAVES
Light Sound P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
5Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 6/29
WAVE MOTION
A disturbance that carries energy
from one place to another.
Wave
Original Sourceof A Wave
Any form of
vibrations P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
6Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 7/29
TYPES OF WAVES
Longitudinal Waves
TransverseWaves
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
7Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 8/29
TRANSVERSE WAVESFormed by up & down OR side-to-side movements
Vibrations are at right-angles to the
direction of travel
Direction of Travel
Vibrations Vibrations
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
8Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 9/29
TRANSVERSE WAVESMain parts of a transverse wave is its peak and
bottom.
Peak (Maximum point)
Bottom
(Minimum point)
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
9Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 10/29
TRANSVERSE WAVES
Light Infra-Red X-Ray
Examples of transverse waves! P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i
l . c o m
10Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 11/29
LONGITUDINAL WAVESFormed by backwards & forwards movements
Vibrations are parallel to the direction of travel
Direction of Travel
Vibrations Vibrations
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i
l . c o m
11Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 12/29
LONGITUDINAL WAVESMain parts of a longitudinal wave is its
compressions and rarefactions.
Areas wherewaves are closetogether
Areas where waves are far apart
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i
l . c o m
12Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 13/29
LONGITUDINAL WAVES
Examples of longitudinal waves!
Sound Ultrasound Supersonic P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
13Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 14/29
TRANSVERSE - LONGITUDINAL
WAVE
COMPARISON
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
14Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 15/29
WAVE TERMINOLOGY
Characteristics used to describe a wave and its
motion
Amplitude
Wavelength Speed
Frequency Phase
Wavefront
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
15Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 16/29
WAVE TERMINOLOGY
“Maximum distance a point moves from its rest
position.”
Amplitude
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
16Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 17/29
WAVE TERMINOLOGY
“The distance between any point on a wave and the
next equivalent point on the wave.”
Wavelength
Crest to crest
Trough to trough Compression to Compression
Rarefaction to Rarefaction
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
17Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 18/29
WAVE TERMINOLOGY
Can be obtained from wave drawings.
Amplitude & Wavelength
Wavelength
Amplitude
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
18Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 19/29
WAVE TERMINOLOGY
Can be obtained from displacement-distance graphs.
Amplitude & Wavelength
Wavelength Amplitude
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
19Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 20/29
WAVE TERMINOLOGY
“The number of complete waves passing any point in 1
second”
Frequency
Time Taken
No. of complete wave
=Frequency
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m
a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
20Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 21/29
WAVE TERMINOLOGY
“The time take for one point on the wave to complete
one oscillation”
Period
“The time taken to produce one complete wave”
Frequency
1
=Period
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m
a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
21Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 22/29
WAVE TERMINOLOGY
Can be obtained from displacement-time graphs.
Frequency & Period
Period
1st complete wave
2nd complete wave
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m
a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
22Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 23/29
LET’S TRY THIS!
Determine the
amplitude,
period and
frequency ofwave produced
by
Loudspeaker A
&
Loudspeaker B P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m
a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
23Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 24/29
WAVE TERMINOLOGY
“The distance moved, in any direction of wave travel, byany point on a wave in one second.”
Speed
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m
a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
24Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 25/29
WAVE EQUATION
“The relationship between the speed, frequency and
wavelength of a wave.”
= Frequency Speed Wavelength X
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m
a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
25Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 26/29
WAVE TERMINOLOGY
Characteristics used to describe a wave and its
motion
Amplitude
Wavelength Speed
Frequency Phase
Wavefront
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m
a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
26Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 27/29
WAVE TERMINOLOGY
“A particular point in the time of a cycle.”Phase
Out of phaseIn phase
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m
a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
27Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 28/29
WAVE TERMINOLOGY
“An imaginary line on a wave that joins all points that
are in the same phase.”
Wavefront
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m
a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m
28Monday, February 21, 2011
8/7/2019 13 Intro to Waves
http://slidepdf.com/reader/full/13-intro-to-waves 29/29
WAVE TERMINOLOGY
Characteristics used to describe a wave and its
motion
Amplitude
Wavelength Speed
Frequency Phase
Wavefront
P r e p a r e d b y C g
E d n a M a r i a H j O s m a n . E - m
a i l : e d n a . m a r i a . o s m a n @ g m a i l . c o m