Sound Waves

Front

What type of wave are sound waves?

Back

Sound waves are longitudinal waves.

Front

What factor has the most effect on the speed of sound in air?

Back

Temperature has the most effect on the speed of sound in air.

Front

What is the term for hearing above 20,000 Hz?

Back

Ultrasonic.

Front

What do we call the bouncing of a sound wave?

Back

An echo.

Front

In which medium does sound travel fastest?

Back

Sound travels fastest in solids.

Front

What is the definition of a longitudinal wave?

Back

A longitudinal wave is a wave in which the particle displacement is parallel to the direction of wave propagation.

Front

What is the relationship between temperature and the speed of sound?

Back

As temperature increases, the speed of sound in air also increases.

Front

What is an example of an infrasonic sound?

Back

Infrasonic sounds are below 20 Hz, such as the rumble of an earthquake.

Front

What is the difference between amplitude and frequency?

Back

Amplitude refers to the height of the wave, affecting loudness, while frequency refers to the number of waves that pass a point in one second, affecting pitch.

Front

What is the definition of an echo?

Back

An echo is a reflection of sound that arrives at the listener after a delay.