Massachusetts Institute of Technology
Sign in | Create Account

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. If you don’t have an account yet, sign up now!

MIT Department of Physics Technical Services Group

MIT Department of Physics Technical Services Group

Category: Science | Updated over 1 year ago

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


Viewed
36131 times

More from MIT Department of Physics Technical Services Group

Surface Distribution of Charge

Surface Distribution of Charge

Added over 2 years ago | 00:01:36 | 4929 views

Plate Sliding Under a Soda Can

Plate Sliding Under a Soda Can

Added almost 4 years ago | 00:00:50 | 16089 views

MIT Physics Demo -- Microwave Interference

MIT Physics Demo -- Microwave Inter...

Added over 6 years ago | 00:02:11 | 27034 views

Bell Labs Wave Machine: Superposition

Bell Labs Wave Machine: Superposition

Added over 3 years ago | 00:00:34 | 11343 views

Refraction & Total Internal Reflection

Refraction & Total Internal Reflection

Added over 2 years ago | 00:01:53 | 4859 views

Bell Labs Wave Machine: Reflection

Bell Labs Wave Machine: Reflection

Added over 3 years ago | 00:01:00 | 15494 views