Sound through an Oscilloscope

This movie is part of the collection: Prelinger Archives
Producer: Coronet Instructional Films Sponsor: N/A
Audio/Visual: Sd, B&W Keywords: Perception: Sound

Creative Commons license: Public Domain

School blocks YouTube?

Oscilloscope_and_Sound.mov

 

 

 

 

B. Period (T) – time for an entire wave cycle to pass a given point in a medium

 

- determined by source of vibration not medium

 

 

T = Total Time/# of waves

 

 

Ex) Use the controls to give this wave an amplitude of 5 and a period of 10

 

Ex) It takes 20 seconds for 5 waves to pass by a point. What is the period?

 

 

 

 

The period is 4 seconds

 

 

 

T

(sec) (Period)

 =

1

f

 

Ex) The frequency of a light

wave is 5.0 x 1014 hertz.

What is the period of the wave?

 

T = 1/f

 

 

 

 = 1/(5.0 x 1014 hertz)

 

 

a) 2.0 x 10-15 s

 

 

 

 

Which has the largest period?

Jan 2004

 

 

 

 

 

 

B
(will take the
longest  to pass by)

 

 

 

 

C. Amplitude – maximum change in position of a particle from its rest position during a single vibration

 

 

Amplitude

[ HTML5 ]
St. Mary's Physics Online

 

- determined by source of vibration, not medium

 

 

 

 

 

 

Ex) Compare waves A & B

 



 

 

 

 

Same Frequency, Period
Different Amplitude
 

 

 

 

1. Amplitude of a wave shows the amount of energy in the wave

 

 

 

a. Amplitude is a measure of loudness for sound and brightness for color -

 

Set your volume low before playing this video

Download this Program

 

 

 

Sound Waves/Oscilloscopes
HyperPhysics

| Onsite |

 

 

 

Amplitude?

Made using a spreadsheet created by Dan Hosey - Pittsford Sutherland HS

http://www.box.net/shared/ac55l0keyv / http://www.youtube.com/watch?v=gX3-4serqwk

 

 

 

 

 

3.0 meters

 

Longitudinal or Transverse?

 

 

Review

Which interval is closest to one wavelength?

 

Longitudinal or Transverse?

 

 

 

 

 

Enrichment

 

How the Ear Works

Producer: Bosse (Karl Kurt)
Sponsor: N/A  Audio/Visual: Sd, B&W
Keywords: Perception: Sound; Animation

Creative Commons license: Public Domain

 

 

 

 

How Sound Works

 

NASAconnect

 

 


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