SOUND Zach Mrs Branin 5 th Grade What

SOUND Zach Mrs. Branin 5 th Grade

What Makes Sound � � Vibration. Definition Sound Waves. A vibration that spreads away from a vibrating object.

Vibrating Air Strings Vibrating How Sound is Produced Percussion Vibrating Surface Woodwinds Vibrating Reed

How Sound is Produced by Strings � � The Guitar’s body is hollow and resonates sound. The strings make different pitches.

What makes Sound • • Compression- The part of a sound wave where molecules are crowded together. Rarefaction- The part of a sound wave where molecules are spread apart.

What can Sound go through • • • Solids- A form of matter that has a definite amount of space. Liquids- A form of matter that takes up a definite amount of space and has no definite shape. Gases- A form of matter that does not take up a definite amount of space and has no definite shape.

Changing Sound • • Pitch Frequency Hertz Volume Decibels Loudness Softness

Sound Bounces • • • Reflection- The bouncing of a sound wave off a surface. Echo- A reflected sound wave. Absorption- The disappearance of a sound wave into a surface.

Common sounds Extra credit • • • Telephone Car Music Fire Alarm Clock Microwave Clapping Talking Jet Plane