Amplitude of a Wave Lessons - St. Mary's H.S. Physics Online

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 (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
St. Mary's Physics Online

- determined by source of vibration, not medium

Ex) Compare waves A & B

Same Frequency
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

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

Phase, λ, Speed

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