Sound Assessment Pilot @ IKE 24-25

Front

Frequency of waves is measured in __________.

Back

hertz

Front

As the volume of the sound decreases, the amplitude of the sound wave __________.

Back

Decreases

Front

Waves with oscillations at 90° to the direction of travel/energy transfer are __________.

Back

Transverse

Front

What is the phenomenon called when a wave bounces back after hitting a barrier?

Back

Reflection

Front

What is the speed of a sound wave in a vacuum?

Back

0 m/s

Front

What is the unit of measurement for sound intensity?

Back

Decibels (dB)

Front

What type of wave requires a medium to travel through?

Back

Longitudinal waves

Front

What is the term for the bending of waves around obstacles?

Back

Diffraction

Front

What is the term for the change in direction of a wave as it passes from one medium to another?

Back

Refraction

Front

What is the relationship between frequency and wavelength in a wave?

Back

Higher frequency means shorter wavelength.