In which  medium will sound travel fastest?

• air
• water
• glass
• salt water

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

In which medium will sound travel slowest?

• air
• water
• glass
• salt water

If a sound is very loud, what must be true?

• The frequency of a sound wave is very high
• The intesity of vibration from the sound wave is very low
• The amplitutde of the sound wave is very low
• The intesity of vibration from the sound wave is very high

Tags

NGSS.MS-PS4-1

In a large stadium, when a batter hits the ball, people high up in the stands hear the crack of the bat a second after it happens because

• Sound has to travel in  many directions at once
• sound takes that much time to reach them
• sound is faster than light
• sound is a wave

Which of the following determines the pitch of a sound wave?

• frequency
• density
• mass
• reflection

Sound is caused by....

• molecules
• vibrations
• people
• space

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What is vibration?

• how loud a sound is
• the back and forth movement of matter
• how high or low a sound is
• the loudness or softness of a sound

Tags

NGSS.MS-PS4-1

What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Measure of how high or low a sound is

• amplitude
• compression
• speed of sound
• pitch

A longer string makes a _______ pitch than a short string.

• louder
• softer
• higher
• lower