untitled

Being able to tell different sounds apart is called

• sound amplification
• sound discrimination
• vibration
• frequency

When you make sounds by plucking a rubber band, you make the rubber band move back and forth very quickly.  This movement is called.

• loudness
• amplitude
• pitch
• vibration

The highness or lowness of a sound is the

• pitch
• loudness
• vibration
• resonance

If you tie a string around a doorknob, pull on the string slowly, and keep plucking it with your finger as you pull, what happens to the pitch?

• As you tighten the string, the pitch gets lower
• The pitch stays the same
• As you tighten the string, the pitch gets higher
• You can't tell unless you try it

The loudness of a sound is called

• the sound wave
• the volume
• the amplitude
• the pitch

A student holds two vibrating objects.  Object A is vibrating faster than object B.  Which statement is true?

• A is louder than B
• B is louder than A
• A will have a higher pitch than B
• B will have a higher pitch than A

The same sound will seem louder if it travels through which of the following?

• solid materials

• liquids

• air

• solids, liquids, or gases will sound the same

If you roll a large sheet of paper into a funnel, you can hear the sound better.  This process of increasing the loudness of a sound is called

• measuring a wave
• absorption
• reflection
• amplification

Which of the following would produce the highest pitch?

• phone
• whistle
• truck horn
• dog's growl

Which of the following would produce the loudest sound?

• jet plane
• pin falling
• doorbell
• whisper