Sound

What is vibration?

• how loud a sound is
• the back and forth movement of matter
• how high or low a sound is
• the loudness or softness of a sound

What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

Measure of how high or low a sound is

• amplitude
• compression
• speed of sound
• pitch

An object that does not vibrate cannot produce

• sound
• light
• heat
• electricity

What is volume?

• how high or low a sound is
• the loudness or softness of a sound
• the number of vibrations per second
• vibrations

We measure sound using what?

• inches
• waves
• grams
• decibels

The cup with 2 rubber bands was an example of what?

• vocal cords
• ear drum 
• lungs
• guitar strings

If we were to tighten the rubber bands around the cup the pitch would become _______________.

• lower
• higher
• remain the same

The more vibrations (higher the frequency) the ____________________ the pitch.

• lower
• higher
• softer
• louder

Volume can be ________________ or _____________.

• high or low
• loud or soft
• up or down