Area of a sound wave where particles are apart

• Compression

• Rarefaction

______describes how loud a sound is.

• Time period

• Frequency

• Amplitude

• wavelength

The voice box is called:

• Mouth

• Larynx

• Stapes

• Incus

Sound is kind of

• Work

• Energy

• Force

• None

Sound waves do not travel through

• Gases

• Liquids

• Solids

• Vacuum

______ converts vibrations into electrical signals.

• Malleus

• Incus

• Stapes

• Cochlea

The speed of sound in solids is the speed of sound in liquids.

• same as

• greater than

• less than

• sometimes greater and sometimes smaller

What kind of musical instrument is a sitar?

• Membrane

• Wind

• string

• None

SI unit of time period is

• nanosecond

• minute

• hour

• second

SI unit of Frequency is

• m/sec

• Hertz

• metre

• Decibel