Physics-11 Sound

Front

The material in which sound waves travel is called the ______.

Back

medium

Front

Sound cannot travel through a _____

Back

vacuum

Front

What is the term for the number of vibrations per second in a sound wave?

Back

frequency

Front

What is the term for the maximum displacement of a wave from its rest position?

Back

amplitude

Front

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

Back

Approximately 343 meters per second.

Front

What is the phenomenon called when sound waves bounce off a surface?

Back

reflection

Front

What is the term for the change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source?

Back

Doppler effect

Front

What is the range of frequencies that humans can typically hear?

Back

20 Hz to 20,000 Hz (20 kHz)

Front

What is the term for the distance between two consecutive crests or troughs in a wave?

Back

wavelength

Front

What is the term for a sound that has a definite pitch and frequency?

Back

musical sound