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Waves

Transverse Waves

Nice basic Applet. You can change Frequency, Wavelength or Amplitude

3 Star
Rubber Duckie in water
Notice that duckie only bobs up and down
4 Star
  Similar 3 Star
Making standing waves in an artificial pool

YouTube. 4 mins

4 Star
Now THIS is a transverse wave
Toyko Summerland Wavepool. Apparently. YouTube. 1 min
4 Star
       
Longitudinal waves
As above
3 Star
Another simple animation from absorblearning.com
3 Star
Longitudinal and Transverse Wave

Get the students to choose one spot and follow it – it's pretty surprising

4 Star
Anatomy of an earthquake - Professor Iain Stewart link YouTube. 7 mins. Nice mention of S, P and surface waves.  
       
Awesome slinky slow-mo Veratasium YouTube. 6 mins. Lots of physics 4 Star
Slinky + Escalator = WIN YouTube. 2 mins. No physics value whatsover  
Slinky on a treadmill YouTube. 3 mins. No physics value whatsover  
 
   
Standing Waves
     
Acoustic Levitation in ULTRA SLOW MOTION link YouTube. 7 mins. From SmarterEveryDay  
How a standing wave forms Explanation by Superposition with the Reflected Wave 4 Star
Creating a wave machine Using only adhesive tape, jelly babies and wooden skewers. Unfortunately you need to register to view 5 Star
In Open and Closed tubes
You can also see the various harmonics
4 Star
Standing waves caused by microwaves
Very nice demonstration using Indian snack food. Scroll down to see some of impressive images
4 Star
Standing waves along a spring with a sig gen and vibration gen

YouTube. 1 min

3 star
Beautiful images of standing waves created by christmas lights
From flickr.com
4 star
Simple demonstration of standing waves MyYouTube 9 minutes.  
3-D Acoustic Manipulation via standing waves YouTube. 2 minutes. Incredible 5 Star
       
       
 
Diffraction and wavelength
Notice that diffraction is most noticeable when slit width is same as wavelength
4 Star
Animation of radio waves diffracting around a hilltop. From absorblearning.com
3 Star
Notice colour also changes with wavelength
4 Star
Lovely animation to show that sound diffracts around corners but light doesn't.
5 Star
Purchase a set of gratings here
Contains eight slides which show the effect of line spacing and grid pattern. From mindsetsonline.co.uk  
 
 
Interference
Soundwaves: animation of constructive and destructive interference
3 Star
Add two waves to see the Amplitude of the resultant. Then put one wave 180 degrees out of phase.
4 Star
Scroll down to the "Phase Difference" section and vary the phase difference between both waves.
5 Star
Drag one set of concentric circles over the other and notice the lines of constructive and destructive interference
4 Star
  Press the 'In Phase' and 'Out of Phase' buttons to see the amplitude of the resultant change 3 Star
Isn't this just the coolest thing you ever saw? Japanese wave pool generates waves of any shape. YouTube. 3 mins 5 Star
Diffraction and interference of water waves
Wonderful examples using images from Google-Earth
5 Star
More real video - this time of ripples in a pond
YouTube. 1 min
5 Star
Virtual Ripple Tank

Click on "Setup: Two Sources". Then "2 Sources, 1 frequency. Then "3-D"
Then sit back and enjoy.

5 Star
Play with the different tabs. Excellent!!
5 Star
A short movie showing interference with a ripple tank
You don't want to know how finicky it is to set up the real thing, so this is not a bad back-up plan
4 Star
       
All you need to know about waves An oldie but very comprehensive. YouTube 30 min. Leads on to college-level material 4 Star
 
The Doppler Effect
YouTube videoclip of a fire engine passing by an observer. Do a search on the site for lots of other examples. 20 seconds.
4 Star
Here we have an ambulance passing with waves but without sound
4 Star
Here we can see the waves as they emanate from the source. You can pause at any stage.
4 Star
Did you know this was first demonstrated by Doppler himself using a band on an open-top train? Seriously!
5 Star
Interactive simulation of the Doppler Ball. Click on the ball and then on the different people.
4 Star
Drag the slider to give the fire engine a velocity.
From absorblearning.com
4 Star
As seen in The Big Bang Theory YouTube1 minute. 4 Star
A song all about the Doppler Shift Lyrics are on the page, to listen just click on the link on the left hand side. 3 Star
The Doppler and Red Shift
 
Hubble and Red Shift
Short video from teachersdomain
5 Star
What is red-shift?
With an Astronomer, a flying saucer and a cow (naturally). From YouTube. 2:30
5 Star