Sound Unit Test

Mrs. Maddox plucked a tight string. If Mrs. Maddox made the tight string shorter and then plucked it, what would happen to the sound?

• The sound would be louder.

• The sound would be quieter.

• The pitch would be higher.

• The pitch would be lower.

Which of the following always causes a sound to change pitch?

• none of these

• changing the strength of the vibration

• changing the speed of the vibration

• changing the material that is making the vibration

Micah taps the tubes one at a time on a set of chimes similar to those shown below. He notes that the pitch of the sounds made goes in order, with the longest tube having the lowest pitch and the shortest tube having the highest pitch. Which tube is vibrating the fastest?

• tube 1

• tube 3

• tube 2

• tube 4

Zanayia plucked a tight string softly, then harder. What happened when Zanayia plucked the string harder?

• The sound was quieter.

• The sound was louder.

• The pitch got higher.

• The pitch got lower.

Tags

NGSS.MS-PS4-1

Which of the following sounds would be produced by fast, weak vibrations?

• high-pitched, soft sound

• low-pitched, soft sound

• low-pitched, loud sound

• high-pitched, loud sound

Tags

NGSS.MS-PS4-1

In the picture of the harp below, string 1 is vibrating faster than string 2. If Nevaeh is listening to both strings vibrating at the same time, then she should be hearing...

• a sound that has no pitch.

• two different pitches.

• only one pitch.

• at least four different pitches.

Tags

NGSS.MS-PS4-1

The picture shows a musical instrument that is played by blowing across the openings of the tubes. A shorter tube will make a sound that is

• softer

• higher-pitched

• lower-pitched

• louder

Tags

NGSS.MS-PS4-1

Kiyan's sister is producing sound by banging cymbals together. How could she decrease the loudness, or volume, of the sound the cymbals make?

• decrease the force she uses to bring the cymbals together

• increase the force she uses to bring the cymbals together

• decrease the size of the cymbals

• increase the size of the cymbals

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Ridge plucked a tight string, then plucked a shorter string that was equally tight.

What happened when Ridge plucked the shorter string?

• The vibrations were slower and therefore the pitch was lower.

• The vibrations were slower and therefore the pitch was higher.

• The vibrations were faster and therefore the pitch was lower.

• The vibrations were faster and therefore the pitch was higher.

Tags

NGSS.MS-PS4-1

What kind of vibration is required to create a low-pitched sound?

• strong

• slow

• weak

• fast