physicslab1

physicslab1 - 1 Williams Lab 1 Resonance Tube Staci...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Lab 1: Resonance Tube Staci Williams Kevin Schesing, Nicole Harty, Caitlin Kubota Section 015 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Performed February 2, 2010 Due February 13, 2010 2
Background image of page 2
Theory : 2.1 Air As A Spring Gas is a springy material, and when placed in a cylinder with pistons on each side it can be compressed as pistons push in, raising the pressure inside. There will be a net force from the pressure to push the piston back out. Since gas has mass it can support oscillations and waves. 2.2 Traveling Sound Waves in Air When a cone of a speaker moves out, it compresses air next to is and imparts an outward velocity to the air molecules around it, in addition to the random thermal velocities of air molecules. The molecules nearest to the speaker will collide with those near them and impart those molecules into motion, propagating away from the speaker producing sound. Similar statements apply to when the cone is moved in as well. If speaker cone vibrates sinusoidally, a traveling wave will be emitted form the speaker and the wave relation f = v λ < λ = wavelength, f = frequency of wave, v = velocity of wave> is satisfied. AS the motion of the wave molecules move along the direction of the propagation of the wave are called longitudinal waves, which is contrasting to transverse waves which are on strings. The waves as the elements of the string move transverse to the direction in which the waves travel. In traveling waves the displacement of air satisfies the wave equation . V = ( √ ϒ P/ ) ρ < v = velocity of wave, ϒ = specific heats at constant pressure/ “ constant volume = C p /C v , P = air pressure, ρ = air mass density>. With the ideal gas law it can be written as V = ( √ ϒ RT/M ) < R = molar gas constant, T = absolute temperature, M = Molar mass>.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 6

physicslab1 - 1 Williams Lab 1 Resonance Tube Staci...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online