Waves and Sound

Flashcards about Waves and Sound, covering vibrations, transverse and longitudinal waves, properties of waves, and related concepts.

What is vibration?

The periodic or repeated motion of a particle or mechanical system.

How does a transverse wave move relative to the medium?

Perpendicular to the medium.

How does a longitudinal wave move relative to the medium?

Parallel to the medium.

What is the definition of 'Period' in the context of waves?

Time to complete one oscillation (symbol T).

What is the definition of 'Frequency' in the context of waves?

The number of oscillations per second (symbol f).

What is the formula for frequency (f)?

f = # of cycles / time

In what unit is frequency (f) measured?

Hz (Hertz)

What is a wave?

Disturbance caused by vibrations.

What is a pulse in the context of waves?

Half a wave.

What happens to a wave's amplitude as it travels through a medium?

It usually decreases because some of its energy is being lost to friction.

Identify the parts of a wave.

Crest, Trough, Amplitude, Wavelength

What is the symbol for wavelength?

Lambda (λ)

What unit is wavelength measured in?

Meters (m)

How are wavelength and frequency related?

Wavelength is inversely proportional to frequency. As frequency increases, wavelength decreases.

What is a medium in the context of waves?

A substance through which a wave moves.

What property of a medium allows a wave to transport energy?

The elastic property.