Sound

What medium does sound travel through slowest?

• gas
• solid
• liquid
• trees

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

Which of these sound waves has the highest frequency?

• 
• 
• 

Which sound wave has the lowest pitch?

• 
• 
• 

The speed of a sound wave depends on

• the frequency
• the medium
• both air temperature and medium
• the air temperature

If the distance represented by the letter A were increased, how would it change the way the sound was heard?

• The sound would be higher. 
• The sound would be lower. 
• The sound would be softer. 
• The sound would be louder. 

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.
• Sound does not travel faster through a solid than a gas.
• Solid molecules are packed tightly.
• Gas molecules move slowly.