Waves and Sound

By: Jasmine GlattfelderAssignment 2

Ultrasound

• A very high frequency sound.• Some animals

• Dogs • Cats• Bats• Dolphins • Mice

Infrasound

• A very low frequency sound.• Hard for human to hear it. – It is similar to a sound wave• Earth Quakes• Meteors • Avalanches • Volcanoes• Tornadoes

Identifying the tension of a Valcanoe

Constructive interference

• Two or more waves resulting.• Two normal waves gives you one large wave.

• Humming.• Speakers.

Two same waves(power) connect, gives you one large one.

Destructive interference

• Two waves unequal.• If they connect… it wont sound right.

When two sound waves connect that don’t go together doesn't fit. (weird noise

Reflection

• When a wave bounces off of something and bounces back.

• Swimming• Talking

Waves hit the wall and bounce back.

Refraction

• The speed of the wave.– Travels quick through air.• Spoon in a cup of water (slow).

The air is making waves travel, through an opening.

Diffraction

• Sound waves around or through an opening of an object.

• Talking into paper with a hole in it.

Sound travels through and opening between an object.