Massachusetts Institute of Technology
Sign in

MIT Physics Demo -- Driven Mechanical Oscillator

A mass on a spring is driven by a large geared motor apparatus, and exhibits resonance at the appropriate frequency. Below resonance, the driving motion is in phase with the motion of the mass. At resonance the mass is 90 degrees out of phase with the driving motion, and above resonance it is 180 degrees out of phase. Note the amplitude of motion difference when the system is at resonance.

Driven mechanical oscillation is directly analagous to the oscillation of current in an RLC circuit, where the capacitor is like the spring, the inductor is like the mass, and the resistor is like air friction. Read more about harmonic oscillation here.

Comments (0)

It looks like no one has posted a comment yet. You can be the first!

You need to log in, in order to post comments.

MIT Department of Physics Technical Services Group

MIT Department of Physics Technical Services Group

Category: Science | Updated over 6 years ago

Created
May 02, 2008 12:19
Category
Tags
License
Creative Commons Attribution-NonCommercial (What is this?)
Additional Files


Viewed
40321 times

More from MIT Department of Physics Technical Services Group

Breaking Glass with Sound

Breaking Glass with Sound

Added over 7 years ago | 00:02:33 | 66895 views

MIT Physics Demo -- Galvanometer Principle

MIT Physics Demo -- Galvanometer Pr...

Added over 8 years ago | 00:00:47 | 53268 views

Coupled Air Carts

Coupled Air Carts

Added over 7 years ago | 00:07:38 | 53607 views

Ripple Tank: Single and Double Slit Diffraction and Interference

Ripple Tank: Single and Double Slit...

Added over 7 years ago | 00:03:05 | 62813 views

Relative Motion Gun

Relative Motion Gun

Added over 7 years ago | 00:01:07 | 57589 views

Fire Extinguisher on a Tricycle

Fire Extinguisher on a Tricycle

Added 8 years ago | 00:00:53 | 40808 views