#  Simple Harmonic (and non-harmonic) Motion 

 



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###  Simple Harmonic Motion Demonstrator

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Relation between circular motion and linear displacement on overhead projector.  
  
\[[In-Depth Description](/presentations/simple-harmonic-motion-demonstrator)\]

###  Circular Motion and Simple Harmonic Motion

 \[L | t+ | ★★★\]  
Simultaneous shadow projection of circular motion and bouncing weight on spring.  
  
\[[In-Depth Description](/presentations/circular-motion-and-simple-harmonic-motion)\]

###  Masses on Springs

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Numerous combinations of springs and masses to show vertical oscillation.

###  Skyhook Pendulum

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A simple pendulum hung from the ceiling of a lecture hall.

###  Physical Pendulum

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A rigid rod executes simple harmonic motion about an adjustable pivot point.  
  
\[[In-Depth Description](/presentations/physical-pendulum)\]

###  Reversible (Kater's) Pendulum

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A physical pendulum with two adjustable knife edges for an accurate determination of "g".  
  
\[[In-Depth Description](/presentations/reversible-katers-pendulum)\]

###  Non-uniform Physical Pendulum

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Half wood and half metal physical pendulum with suspension points at both ends.  
  
\[[In-Depth Description](/presentations/non-uniform-physical-pendulum)\]

###  Cycloidal Pendulum

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A pendulum is made to swing on a cycloidal path thereby making it isochronous, regardless of amplitude.

###  Torsional Pendulum

 \[M | t | ★★★\]  
Oscillation of mass on wire in torsional mode of oscillation.

 \[[In-Depth Description](/presentations/torsional-pendulum)\]

###  Torsional Cube Pendulum

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A torsional pendulum with a cubic mass; by suspending the cube along various symmetry axes, the moment(s) of inertia can be verified.

###  Pendulum Waves

 \[S | t | ★★★★\]  
Fifteen independent pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, and (seemingly) random motion.

 \[[In-Depth Description](/presentations/pendulum-waves)\]

###  Damped Mass-Spring Oscillator

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Vertical mass-spring oscillator which can be driven at various frequencies with and without damping.

###  Driven Damped Oscillator

 \[L | t+ | ★★★\]  
Single air track glider, with and without variable frequency driver, variable damping, and oscilloscope position vs. time display.

 \[[In-Depth Description](/presentations/driven-damped-oscillator)\]

###  Air Track Oscillator

 \[L | t++ | ★★★\]  
Sonar position sensor tracks motion of oscillating air track glider, and LogerPro calculates corresponding velocity and acceleration.

###  Mass with Two Vertical Springs

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Normal modes of vibration of a single mass with three degrees of freedom.

###  Tuning Forks

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Selection of mounted tuning forks and rubber hammer.  
  
\[[In-Depth Description](/presentations/tuning-forks)\]

###  x3 oscillator

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An oscillator whose restoring force is *not* proportional its displacement; air-track and air-table versions for 1 and 2-dimensions.

###  Contact Us

 **Mailing Address**: Lecture Demonstration Services, Science Center, Rm B-08A, 1 Oxford Street, Cambridge, MA 02138  
**Campus Location**: Science Center B-08A | **Tel**: (617) 495-5824 | **Email**: scidemos-at-fas.harvard.edu