Sound Waves Flashcard

Front

What is a sound wave?

Back

A sound wave is a mechanical wave that is an oscillation of pressure transmitted through a medium such as air, water, or solids.

Front

What is frequency in relation to sound waves?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz). Higher frequency means a higher pitch.

Front

What is amplitude in sound waves?

Back

Amplitude is the maximum extent of a vibration or oscillation, measured from the position of equilibrium. It determines the loudness of the sound.

Front

What is the difference between longitudinal and transverse waves?

Back

Longitudinal waves have oscillations in the same direction as the wave travels, while transverse waves have oscillations perpendicular to the direction of wave travel.

Front

What is rarefaction in sound waves?

Back

Rarefaction is the region in a longitudinal wave where the particles are spread apart, resulting in lower pressure.

Front

What is compression in sound waves?

Back

Compression is the region in a longitudinal wave where the particles are close together, resulting in higher pressure.

Front

What is reflection in the context of sound waves?

Back

Reflection is the bouncing back of sound waves when they hit a barrier, allowing us to hear echoes.

Front

What is absorption in sound waves?

Back

Absorption is the process by which sound waves are taken in by materials, reducing the intensity of the sound.

Front

What is sonar and how does it work?

Back

Sonar (Sound Navigation and Ranging) uses sound waves to detect and locate objects underwater by measuring the time it takes for the sound to reflect back.

Front

What is the speed of sound in air at room temperature?

Back

The speed of sound in air at room temperature (20°C) is approximately 343 meters per second.