How loud a sound is (depends on amplitude).

How high or low a sound is (depends on frequency).

The quality of a sound (depends on timbre).

The duration of a sound (depends on length).

Permanently

Temporarily, not permanently.

Not at all

Only in liquids

A wave that appears to be standing in one place, even though it is two waves interfering as they pass through each other.

A wave that travels through a medium without changing its position.

A wave that is created by the reflection of sound waves in a closed space.

A wave that moves in a circular motion, like ripples in water.

Any disturbance that transmits energy through matter or space.

A type of particle that moves through a medium.

A static condition of matter without any movement.

A phenomenon that occurs only in liquids.

When a wave bends around objects.

When a wave reflects off a surface.

When a wave travels in a straight line.

When a wave is absorbed by a medium.

Awareness of the energy of a sound (depends on amplitude).

The frequency of a sound wave.

The quality of a sound that distinguishes it from others.

The speed at which sound travels through a medium.

Transverse waves that travel through a vacuum.

Longitudinal mechanical waves, but they're often pictured as transverse waves.

Electromagnetic waves that require a medium to travel.

Static waves that do not propagate through any medium.

A wave in which the vibration of the medium is parallel to the direction the wave travels.

A wave that travels perpendicular to the direction of the medium's vibration.

A wave that does not require a medium to travel.

A wave that travels in a circular motion.

The bending of a wave as it passes through different mediums.

The bouncing back of a wave when it hits a surface through which it cannot pass.

The absorption of a wave by a surface.

The scattering of a wave in multiple directions.

A unit used to measure the loudness of different sounds.

A type of musical note.

A measure of temperature.

A unit for measuring distance.

Gases

Liquids

Solids

Vacuum

A wave that moves the medium in a direction parallel to the direction in which the wave travels.

A wave that moves the medium in a direction perpendicular to the direction in which the wave travels.

A wave that does not require a medium to travel.

A wave that travels in a circular motion.

The change in frequency of a wave as its source moves in relation to an observer.

The increase in amplitude of a wave as it travels through a medium.

The reflection of waves off a surface causing a change in direction.

The absorption of waves by a medium, reducing their intensity.

There are no molecules of atmosphere that can be disturbed.

Sound waves require a solid medium to travel.

Outer space is too cold for sound to travel.

Sound waves are absorbed by cosmic radiation.

When a wave is reflected off a surface.

When a wave passes through an object or a medium.

When a wave is absorbed by an object.

When a wave is created by a vibrating source.

The bending of a wave as it passes at an angle from one medium to another.

The reflection of light off a surface.

The absorption of light by a medium.

The scattering of light in different directions.

The energy of the wave is reflected back into the environment.

The energy of the wave is transferred ('disappears') into the material.

The energy of the wave is converted into heat and dissipated.

The energy of the wave is transmitted through the material without any loss.

Finding an object using reflected sound (e.g., in animals like dolphins and bats).

A method of navigation using visual cues.

The ability to see in complete darkness.

A technique for communicating through vibrations.

The interaction between two waves that meet.

A type of wave that travels through a vacuum.

The process of waves being absorbed by a medium.

A phenomenon where waves are reflected back.