29 Quiz

What is the formula to calculate the velocity of a wave?

If the frequency of a sound wave is 500 Hz and the wavelength is 0.68 m, what is the velocity of the wave?

• 340 m/s

• 250 m/s

• 500 m/s

• 680 m/s

Which of the following best describes the relationship between frequency and pitch?

• Higher frequency results in a lower pitch.

• Higher frequency results in a higher pitch.

• Frequency does not affect pitch.

• Lower frequency results in a higher pitch.

A sound wave has a frequency of 256 Hz. What is the pitch of this sound wave compared to a sound wave with a frequency of 512 Hz?

• Lower pitch

• Higher pitch

• Same pitch

• Cannot be determined

What does the amplitude of a sound wave determine?

• The speed of the sound

• The pitch of the sound

• The intensity of the sound

• The frequency of the sound

If the amplitude of a sound wave increases, what happens to the sound intensity?

• It decreases.

• It remains the same.

• It increases.

• It becomes zero.

Which of the following is true about the wavelength of sound waves in different mediums?

• Wavelength is longer in air than in water.

• Wavelength is shorter in air than in water.

• Wavelength is the same in all mediums.

• Wavelength is longer in solids than in gases.

A sound wave travels from air into water. What happens to its wavelength?

• It increases.

• It decreases.

• It remains the same.

• It becomes zero.

What is the unit of frequency?

• Meters (m)

• Hertz (Hz)

• Seconds (s)

• Joules (J)

If a sound wave has a velocity of 340 m/s and a frequency of 170 Hz, what is its wavelength?

• 2 m

• 0.5 m

• 1 m

• 3 m