Waves and Sound

What is frequency?

• The measure of the frequency of the vibration of the source of a sound

• Unit used to measure loudness

• The number of waves that pass a point in a second

• The property of a sound wave related to how packed the molecules are

Tags

NGSS.MS-PS4-1

What is amplitude?

• Unit used to measure loudness

• The measure of the frequency of the vibration of the source of a sound

• The number of waves that pass a point in a second

• The property of a sound wave related to how packed the molecules are

Tags

NGSS.MS-PS4-1

What is a decibel?

• The number of waves that pass a point in a second

• The measure of the frequency of the vibration of the source of a sound

• Unit used to measure loudness

• The property of a sound wave related to how packed the molecules are

What is compression?

• A unit used to measure frequency

• Measured from one compression to another compression, or from one rarefraction to another rarefraction

• The part of a sound wave where molecules are spread apart

• The part of a sound wave where molecules are pushed together

Tags

NGSS.MS-PS4-2

What is rarefraction?

• Measured from one compression to another compression, or from one rarefraction to another rarefraction

• A unit used to measure frequency

• The part of a sound wave where molecules are pushed together

• The part of a sound wave where molecules are spread apart

What is wavelength?

• The part of a sound wave where molecules are pushed together

• The part of a sound wave where molecules are spread apart

• A unit used to measure frequency

• Measured from one compression to another compression, or from one rarefraction to another rarefraction

What is Hertz (HZ)?

• The part of a sound wave where molecules are spread apart

• Measured from one compression to another compression, or from one rarefraction to another rarefraction

• A unit used to measure frequency

• The part of a sound wave where molecules are pushed together

Tags

NGSS.MS-PS4-1

What is loudness?

• The number of waves that pass a point in a second

• The measure of the frequency of the vibration of the source of a sound

• How loud or soft a sound is

• The property of a sound wave related to how packed the molecules are

Tags

NGSS.MS-PS4-1

What is vibration?

• Unit used to measure loudness

• The back and forth movement of molecules

• The measure of the frequency of the vibration of the source of a sound

• The number of waves that pass a point in a second

Tags

NGSS.MS-PS4-1

A loud motorcycle passes by the front of Bill's house. What medium does the sound wave travel through to get from the motorcycle to Bill's ears?

• air

• energy

• a vacuum

• large vibrations

Tags

NGSS.MS-PS4-2