The Sounds of BAseball Passage

What are sounds the result of?

• air molecules

• ears

• voice boxes

• vibrations

What main examples are described in the text to illustrate how sounds are created?

• hot dog vendor shouting, the bat hitting the ball, the ball hitting the ground

• people speaking into microphones, the organ playing music, the bat hitting the ball

• hot dog vendor shouting, the organ playing music, the bat hitting the ball

• hot dog vendor shouting, the organ playing music, the fans clapping

After a sound is made there is a delay before a person is able to hear it. What evidence from the text supports this conclusion?

• Fans in the stadium hear the sound the bat makes when it hits the ball microseconds after impact.

• After a vibration of any kind, the molecules of the object knock into the molecules of air.

• Fans hear the hit of the bat and use their vocal cords to start new vibrations of cheer.

• Sound waves of vibrations make a connection inside a person’s ear

Which of the following occurs when a person’s brain processes sound?

• The brain starts to send the molecules around it into unrest.

• The brain also determines whether it is a familiar sound or not.

• The brain sends the sound waves to the ear.

• The brain starts to vibrate.

What is this passage mainly about?

• the way air molecules bash into each other

• examples of sound being created at a baseball game and the science behind the sounds

• how sound waves of vibrations make a connection inside a person’s ear

• baseball games, hot dog vendors, and organs

Read the following sentence: “After a vibration of any kind, the molecules of the object knock into the molecules of air that surround it, or possibly the molecules of another object next to it. Air molecules bash into each other like millions of microscopic Ping-Pong balls, transporting the sound through what becomes a sound wave.”

What does the word “bash” most nearly mean?

• get stuck

• melt

• to hit hard

• run away

Choose the answer that best completes the sentence below.

__________ the hot dog vendor to yell out, his voice box vibrates first.

• And

• After

• Because

• In order for