Sound Check 2

How fast a sound vibrates affects the ______ of the sound.

• volume

• length

• pitch

Is a whistle a sound source or a sound receiver?

• Sound source

• Sound receiver

Is your ear a sound source or a sound receiver?

• sound source

• sound receiver

Is a school bell a sound source or sound reciever?

• sound source

• sound reciever

A pan flute has tubes of different lengths. Describe how the sound of air through a short tube is different from the sound of air through a long tube.

Answer explanation

a short tube will produce a higher pitch than a long tube.

Ben set up the investigation that you see in the picture to learn more about sound. He attached two strings of the same length to the table in the same way. He attached a heavy weight to one string and a light weight to the other string.

What did Ben hear when he plucked the strings?

• The heavy-weight string had the same pitch as the light-weight string.

• The light-weight string had a higher pitch than the heavy-weight string.

• The heavy-weight string had a higher pitch than the light-weight string.

Tags

NGSS.MS-PS4-1

A sound's pitch can be described as

• short or long

• high or low

• loud or soft

A sounds volume can be described as

• short or long

• high or low

• loud or soft

Tags

NGSS.MS-PS4-1

A student had a harp that was out of tune. What should he do to make one of the strings a bit higher in pitch?

• loosen the string

• tighten the string

• replace the string with a thicker one

• make the string longer

Tags

NGSS.MS-PS4-1

The five bottles contain different amounts of water. The bottles will produce different sounds when tapped. What kind of pitch will the circled bottle produce compared to the other bottles?

• lowest pitch

• highest pitch