What two factors does a sound wave contain?

What two factors does a sound wave contain?

• A. Amplitude and frequency
• B. Time and tempo
• C. Timbre and duration
• D. Velocity and pitch

Answer: (A)

Two key factors describe a sound wave: amplitude and frequency. Amplitude is how large the oscillations are, which we hear as how loud the sound is. Frequency is how many oscillations occur each second, which determines the pitch of the sound. Other terms in the choices refer to timing (how long the sound lasts, tempo), tone color or quality (timbre), or the speed of the wave through a medium (velocity). These describe aspects related to the experience or behavior of sound, but the two fundamental properties that define the wave itself are how strong the vibration is and how often it repeats.

Two key factors describe a sound wave: amplitude and frequency. Amplitude is how large the oscillations are, which we hear as how loud the sound is. Frequency is how many oscillations occur each second, which determines the pitch of the sound. Other terms in the choices refer to timing (how long the sound lasts, tempo), tone color or quality (timbre), or the speed of the wave through a medium (velocity). These describe aspects related to the experience or behavior of sound, but the two fundamental properties that define the wave itself are how strong the vibration is and how often it repeats.