Physics 2110A – 2012
Some interesting videos on oscillations and waves
Our own:
A mass on a spring with three different amounts of damping
From the web:
Breaking a wine glass with resonance
http://paer.rutgers.edu/pt3/cycleindex.php?topicid=6
There are many good videos here, including:
Period and amplitude:
Quantitative Observation Experiment
Dependence of Period
on Size of Oscillation: Observation Experiment
Changing the length of
the String: Quantitative Observation Experiment
Pulses on Slinkies: Quantitative Observation Experiment
Reflection of
Transverse Pulses on a Slinky: Observation
Speed of Longitudinal
vs. Transverse Pulses: Observation Experiment
Interaction of two
Pulses: Qualitative Observation Experiment
Length of a Slinky:
Observation Experiment
Basic wave
observations: Quantitative Observations Experiment
MIT Lec 10
| 8.01 Physics I: Classical Mechanics, Fall 1999
http://www.youtube.com/watch?v=__2YND93ofE
An MIT professor swings on a
pendulum in order to show that the period does not depend on the mass. The
video is of the whole lecture, to see him swinging start watching at 43 min and
beyond.
Slow Motion: rubber string pulled and
released
http://www.youtube.com/watch?v=Qr_rxqwc1jE
A rubber string suspended from two fixed points is pulled tight and released.
The deformation of the string was filmed and is played in slow motion.
Slow Motion – High
Speed Cymbal with Audio! – 420 fps – Casio EX FC – 100
http://www.youtube.com/watch?v=tBZ8o0Kiz6w
A cymbal is hit and the resulting vibrations are filmed in slow motion.
A beautiful red drop of water in slow
motion
http://www.youtube.com/watch?v=CJ-AX1G0SmY
A drop of red liquid falls into a cup of water and the resulting ripples are
filmed. This shows the difference between the propagation of a disturbance vs.
the propagation of the medium.
Circular Membrane (drum head)
Vibration
http://www.youtube.com/watch?v=v4ELxKKT5Rw
A speaker plays various frequencies to vibrate a circular membrane. Several
modes of vibration can be seen.
Atomic Bomb Test
http://www.youtube.com/watch?v=KKksXuzyvY4
The pressure wave from an atomic bomb test reaches a clump of trees. The wave is a single pulse and the trees bend forward and back only once.
Tuning fork
vibrations in super slow motion
http://www.youtube.com/watch?v=C5LS6scAL3E&feature=related
A vibrating tuning fork is filmed with a high speed camera
and dipped in milk to see a resulting wave. Issues with Nyquist
frequency are discussed.
Standing waves
between tuning fork prongs
http://www.youtube.com/watch?v=3qtnbifHKXU&feature=related
A high speed camera captures a tuning fork in water. Standing
waves and interference patters can be seen. This starts roughly 40 seconds into
the video.
Mechanical resonance
experiment with a pendulum
http://www.youtube.com/watch?v=IDi0bb0u3V8
A pendulum is forced to oscillate by a vibrator at various frequencies. The pendulum reaches its resonance frequency and exceeds it.
Simultaneous
Linear and Nonlinear Pendulum Simulation: Small Angles Simultaneous Linear and
Nonlinear Pendulum Simulation: Large Angles
http://www.youtube.com/watch?v=8WE6HsIopO0
http://www.youtube.com/watch?v=XI7vcWr-D_8
These videos show nonlinear and linear modeled pendulums simultaneously at
large and small angles.
MyPhysicsLab – Simple Pendulum
http://www.myphysicslab.com/pendulum1.html
An applet showing the angle, time, angular velocity or angular acceleration vs. angle for large, small and medium angles. It is clear as the angle increases the motion becomes increasingly nonlinear.
How are beats made?
http://www.youtube.com/watch?v=6jElYFYGGqg&feature=related
Beats are made from interfering sine waves and played through the audio.
Longitudinal standing
wave
http://www.youtube.com/watch?v=u-140G_eJ6I
One end of a spring is connected to a vibrator and the other end to a stand. The vibrator is powered by a frequency generator. Standing waves are set up in spring at various frequencies.