Sound Flashcard 2024

Front

What is a sound wave?

Back

A sound wave is a type of mechanical wave that travels through a medium (like air, water, or solids) by vibrating particles.

Front

What determines the pitch of a sound?

Back

The pitch of a sound is determined by the frequency of the sound wave; higher frequencies result in higher pitches.

Front

What is amplitude in the context of sound waves?

Back

Amplitude refers to the height of the wave and is related to the loudness of the sound; greater amplitude means a louder sound.

Front

What is the difference between mechanical and electromagnetic waves?

Back

Mechanical waves require a medium to travel through, while electromagnetic waves can travel through a vacuum.

Front

What is diffraction of sound waves?

Back

Diffraction is the bending of waves around obstacles or through openings, allowing sound to be heard even when the source is not in direct line of sight.

Front

How do bats use sound to navigate?

Back

Bats use echolocation, emitting sound waves that reflect off objects, helping them locate food and navigate their environment.

Front

What happens to sound waves when they pass through different mediums?

Back

Sound waves can change speed and direction when they pass from one medium to another, a phenomenon known as refraction.

Front

What is the relationship between frequency and wavelength?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.

Front

What is the role of reflection in sound?

Back

Reflection occurs when sound waves bounce off surfaces, allowing us to hear echoes.

Front

What is the effect of distance on sound pitch?

Back

As the distance between points in a sound wave increases, the pitch may decrease due to lower frequency.