Chapter 3 Unit F Properties of sound (Grade 5)

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What is the order in which you SEE and HEAR thunder and lighting

Lighting is followed by thunder

If someone says "Turn it Down" that person means you should DECREASE what part of the SOUND

Amplitude

Rarefraction

Is the region where there are fewer particles than normal

A high sound is always high because of

Frequency

sound travels through cold weather

slower because the paticles take longer to collide

sound travels through hot weather

faster because the particle move faster to collide

sound travels through metal

faster because there is more matter and the particle are more compact

sound can not travel through a vacuum

because there is no matter/air in a vacuum

vibrations

are back and forth movements in matter (sound)

Crest of a wave represents the

compression of the wave

Basic tones mixed together with softer and higher sound

overtones

a keyboard is broken up into

Octaves

A part of a sound waves where the particles have been pushed closer is

compressions

The human voice produces in a wide range

Frequencies

The low voices sing a C at 132 hertz - two

Octaves Lower

Someone with long think vocal cords may sing tones at even lower

Pitch

Three Parts of the Waves used to determine the kind of waves are

Wavelength, Amplitude, Frequency

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