Sound Test

How are sound waves of lower pitches different from sound waves of higher pitches?

• They are longer
• They are shorter
• They are closer together
• They are farther apart. 

A piano tuner will tighten the strings of a piano so that the pitch will be 

• louder
• softer
• lower
• higher

A guitar can change its pitch. What do you do to the strings to make a higher pitch? 

• loosen the strings
• tighten the strings
• pluck the strings harder
• pluck the strings softer

Sound is a kind of energy made by

• heat
• vibrations
• cold

Low pitch sound wave always has

• a longer wavelength 
• a shorter wavelength
• small amplitude
• a high volume

Caroline tapped a glass filled with water and heard a sound. Which action would raise the pitch?

• pour some water out of the glass
• put more water into the glass
• heat the water
• coll the water

Sound travels faster through

• solids
• liquids
• gas

How do we observe sound?

• tasting 
• smelling
• hearing
• seeing

For vocal chords to produce a ______ pitch they must get tighter and closer together. 

• loud
• soft
• high
• low

Which of the following best shows how sound waves travel?

• a branch on a tree moving
• a car speeding down the road
• a baseball hit by a bat
• a pebble dropped in a bowl of water