Sound

In science, ___________ is defined as the transfer of energy from a vibrating object in waves that travel through matter.

• Sound

• Sound Waves

• Waves

• Music

Most sounds we hear travel through air, but sounds can also travel through _________ and ________.

• Solids and Plasma

• Liquids and Solids

• Plasma and Gases

• Gases and Metals

All sound waves begin with vibrating matter. The vibrations generate longitudinal ________ that travel through matter in all directions.

• Sound

• Waves

• Arcs

• Spikes

The speed of sound is the ______________ that sound waves travel in a given amount of time.

• Time

• Distance

• Speed

• Waves

Generally, sound waves travel most quickly through solids, followed by liquids, and then by gases.

• True

• False

For a given medium, sound waves travel more _______ at lower temperatures.

• Quickly

• Slowly

__________ refers to how loud or soft a sound seems to a listener.

• Sound

• Noise

• Decibels

• Loudness

The unit of intensity is the ________ (dB).

• Sound

• Volume

• Decibel

• Bass

As decibel levels get ________, sound waves have greater intensity and sounds are louder.

• Lower

• Higher

• Quieter

• Softer

The frequency of sound waves is measured in __________.

• meters

• meters/second

• hertz

• none of the above