Sound and Space: Loudness and Pitch of Sound

These flashcards cover key concepts regarding sound waves, loudness, and pitch, as discussed in the lecture.

What does amplitude measure in a sound wave?

Amplitude measures the maximum distance particles move from their rest position due to a sound wave.

How is loudness related to amplitude?

The loudness of a sound increases as the amplitude of the sound wave increases.

What does frequency measure in a sound wave?

Frequency measures the number of complete vibrations or cycles per second, measured in Hertz (Hz).

How does frequency relate to pitch?

As the frequency of a sound wave increases, the pitch of the sound also increases.

What is an oscilloscope used for?

An oscilloscope displays waveforms of sound waves, allowing comparison of amplitude and frequency visually.

What happens to the pitch of a sound when the length of a vibrating string decreases?

The pitch of the sound becomes higher.

What is the relationship between distance from a vibrating sound source and the loudness of the sound?

The further away you are from the vibrating object, the quieter the sound appears due to energy dissipation.

What measures the change in amplitude in an oscilloscope display?

The vertical height of the waveform represents the amplitude.

How do shorter vibrating objects affect pitch?

Shorter vibrating objects produce higher pitch sounds compared to longer ones.

What are the common units for measuring frequency?

Frequency is measured in Hertz (Hz), where 1 Hz equals one complete vibration per second.