Waves Flashcard

Front

What happens to sound waves when they hit a hard surface like a wall?

Back

They are reflected back.

Front

What is the formula to calculate the speed of a wave?

Back

Speed = Frequency x Wavelength.

Front

If a wave has a frequency of 46 Hz and a wavelength of 1.7 m, what is the speed of the wave?

Back

78.2 m/s.

Front

What happens to sound wave energy when it hits soft, porous materials?

Back

It is absorbed.

Front

What is constructive interference?

Back

It occurs when the crest and crest or trough and trough of two waves interact, resulting in increased amplitude.

Front

What is destructive interference?

Back

It occurs when the crest of one wave meets the trough of another, resulting in decreased amplitude.

Front

Define wavelength.

Back

The distance between two consecutive crests or troughs in a wave.

Front

What is frequency in the context of waves?

Back

The number of waves that pass a point in one second, measured in Hertz (Hz).

Front

What is amplitude?

Back

The maximum distance that points on a wave move from their rest position.

Front

What is the relationship between frequency and wavelength?

Back

As frequency increases, wavelength decreases, and vice versa.