Chapter 15 Sound

The time needed for an object to complete one full cycle of simple harmonic motion is the ____ .

• period
• frequency
• harmonic
• amplitude

Tags

NGSS.HS-PS4-1

Which harmonic occurs in FIGURE 2

• The fundamental
• The first
• The second
• The third

Tags

NGSS.HS-PS4-1

A wave has a frequency of 8 Hz and a wavelength of 4 meters. What is the period of the wave?

• 16 sec
• 2 m
• 0.5 sec
• 0.125 sec

Tags

NGSS.HS-PS4-1

λ = 4 meters
v = 10 m/sec
Determine the frequency.

• 14 Hz
• 40 Hz
• 0.4 Hz
• 2.5 Hz

Tags

NGSS.HS-PS4-1

A guitarist strums two strings on a guitar. The first string vibrates more quickly than the second string. What is true about the pitch of the string?

• The first string has a higher pitch than the second string
• The second string has a higher pitch that the first string.
• The first string and the second string have the same pitch.
• The pitch of the second string depends on the pitch of the first string.

Tags

NGSS.HS-PS4-1

How are light waves and sound waves similar?

• The both are invisible.
• They both carry energy.
• They both travel in vacuums.
• They both are harmful to cells.

Tags

NGSS.MS-PS4-1

Sound travels fastest through what type of mediums?

• pond water
• cold air
• iced tea
• wooden desk

Tags

NGSS.HS-PS4-1

Shorter wind instruments have ____________ pitches to their sound.

• lower
• like
• higher
• vibrating

Tags

NGSS.HS-PS4-1

Why do shorter wind instruments produce a higher pitch sound?

• The shorter chamber creates a longer wavelength and higher frequency.

• They have strings.

• The shorter chamber creates a shorter wavelength and higher frequency.

• The chamber is wider.

Tags

NGSS.HS-PS4-1

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.
• Sound does not travel faster through a solid than a gas.
• Solid molecules are packed tightly.
• Gas molecules move slowly.

Tags

NGSS.MS-PS4-2