Pitch

The ____________ of sound is the number of sound vibrations generated in a second.

• amplitude

• frequency

• reflection

• absorption

What will happen when the sound of siren of the ambulance comes closer to the observer?

• the pitch of sound increases

• the loudness of the sound increases

• The loudness of the sound decreases

• The pitch of the sound decreases

Choose true statements about the difference in the characteristics of the vibration of the voice box of men and women. (2 answers)

• The voice box of women produces sound with higher frequency compared to the voice box of men.

• The voice box of women produces sound with lower frequency compared to the voice box of men.

• women's voice has a higher pitch

• women's voice has a lower pitch

Tags

NGSS.HS-PS4-1

What best describes the doppler effect?

• An apparent change in frequency of a wave due to the relative motion between a wave source and an observer

• An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.

Tags

NGSS.HS-PS4-1

The Science word for how high or low a sound is.

• Pitch

• Volume

Sort these objects by pitch.

Groups:

(a) High Pitch

,

(b) Low Pitch

• Cow Moo

• Refrigerator

• Alarm clock

• Whistle

• Birdsong

• Mouse squeak

• Bull Frog

• Vaccuum

• Siren

• Drum

Is this high or low pitch?

• high

• low

Is this high or low pitch?

• high

• low

Tags

NGSS.MS-PS4-1

The pitch of a sound is determined by its:

• Amplitude

• Frequency

• Wavelength

• Speed

Which of the following instruments is likely to produce the highest pitch?

• Bass drum

• Flute

• Cello

• Tuba