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Sound

QuestionAnswer
What is sound? a form of energy that travels in waves through matter
What is vibrate? to move back and forth quickly
What are molecules? particles in matter
What is a wave? a change that carries energy from one place to another
How are sounds and waves related? sound moves in waves through matter
What makes sound? vibrations
What is a medium? the matter through which a wave travels (solid, liquid, or gas)
What is pitch? how high or low a sound is, and is caused by the frequency of the sound wave (High-frequency waves make the pitch high. Low-frequency waves make the pitch low.)
What is volume? how loud or soft a sound is, the amplitude shows a sound wave's energy (If the amplitude is large, the volume will be loud. If the amplitude is small, the volume will be soft)
How do we measure a sound's volume? decibels (softer sounds have lower decibels, louder sounds have higher decibels)
Sound travels the fastest through what medium? solids (wood, metal...)
Sound travels the slowest through what medium? Gases (air)
True or False? Something must first produce a vibration before it can produce a sound. True
How do you make the volume louder when hitting a drum? Hit the drum harder
How did you change the pitch when you made the ruler and rubber band instrument? Stretch the rubber more or less tightly
Created by: sspooner