29 DOL

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

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

• 340 m/s

• 250 m/s

• 500 m/s

• 680 m/s

How does the frequency of a sound wave relate to its pitch?

• Higher frequency results in a lower pitch

• Higher frequency results in a higher pitch

• Frequency does not affect pitch

• Frequency and pitch are inversely proportional

Which of the following statements is true about amplitude and sound intensity?

• Amplitude is directly proportional to sound intensity

• Amplitude is inversely proportional to sound intensity

• Amplitude does not affect sound intensity

• Amplitude and sound intensity are unrelated

A sound wave travels through air with a wavelength of 1.5 m. If the speed of sound in air is 340 m/s, what is the frequency of the wave?

• 226.67 Hz

• 510 Hz

• 340 Hz

• 1.5 Hz

What happens to the wavelength of a sound wave as it moves from air to water, assuming the frequency remains constant?

• Wavelength increases

• Wavelength decreases

• Wavelength remains the same

• Wavelength becomes zero

Which of the following is an example of sound wave interference?

• Echo

• Beats

• Doppler Effect

• Refraction

Calculate the wavelength of a sound wave with a frequency of 256 Hz traveling at 343 m/s.

• 1.34 m

• 0.75 m

• 1.25 m

• 2.68 m

What is the effect of increasing the amplitude of a sound wave on its intensity?

• Intensity decreases

• Intensity increases

• Intensity remains the same

• Intensity becomes zero

If two sound waves of slightly different frequencies interfere, what phenomenon is observed?

• Echo

• Beats

• Resonance

• Diffraction