Sound Energy

What is sound energy produced by?

• light waves

• static electricity

• vibrations of particles in a medium

• magnetic fields

Which property of sound determines how high or low a sound is?

• Frequency

• Velocity

• Wavelength

• Amplitude

What is the number of vibrations per second called?

• intensity

• amplitude

• wavelength

• frequency

How does sound travel through a medium?

• Sound travels through a medium by creating vibrations in the particles of the medium.

• Sound travels through a medium by emitting light waves.

• Sound travels through a medium by releasing heat energy.

• Sound travels through a medium by generating magnetic fields.

What is the term for the loudness or softness of a sound?

• volume

• amplitude

• pitch

• frequency

What property of sound helps us distinguish between different musical instruments?

• Timbre

• Frequency

• Pitch

• Volume

What is the term for the quality of a sound that distinguishes it from other sounds?

• harmony

• timbre

• pitch

• volume

What is the unit used to measure the intensity of sound?

• decibel (dB)

• ampere

• watt

• hertz

How does the pitch of a sound change as the frequency increases?

• The pitch of a sound remains constant as the frequency increases.

• The pitch of a sound is unrelated to the frequency.

• The pitch of a sound decreases as the frequency increases.

• The pitch of a sound increases as the frequency increases.

What happens to the wavelength of a sound wave as its frequency increases?

• The wavelength increases.

• The wavelength decreases.

• The wavelength remains constant.

• The wavelength becomes infinite.