Question

Name the three characteristics of sound.

Answer 1

The basic properties of sound are: pitch, loudness and tone. Figure 10.2: Pitch and loudness of sound. Sound B has a lower pitch (lower frequency) than Sound A and is softer (smaller amplitude) than Sound C. The frequency of a sound wave is what your ear understands as pitch.

Answer 2

║⊕ANSWER⊕║

WHAT IS SOUND?

• Sound is produced when something vibrates.
• The vibrating body causes the medium (water, air, etc.) around it to vibrate.
• Vibrations in the air are called travelling longitudinal waves, which we can hear.

CHARACTERISTICS OF SOUND

• Pitch depends on the frequency of the sound waves produced by the source.
• Quality (or Timbre) of the sound depends on wave form.
• Loudness is directly proportional to the square of the amplitude.