Physics Waves Review Spring 2025

Front

What is the Doppler Effect?

Back

The Doppler Effect is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source.

Front

What determines the loudness of a sound?

Back

The amplitude of a sound wave determines the loudness of the sound.

Front

What is diffraction in the context of sound waves?

Back

Diffraction is the bending of sound waves through openings or around obstacles.

Front

What happens when an object vibrates at or near a certain frequency?

Back

It causes a second object to vibrate, a phenomenon known as resonance.

Front

What is the relationship between pitch and frequency?

Back

Pitch is the perceived frequency of a sound; higher frequencies correspond to higher pitches.

Front

Define amplitude in terms of sound waves.

Back

Amplitude is the maximum extent of a vibration or oscillation, measured from the position of equilibrium, and it affects the loudness of the sound.

Front

What is resonance?

Back

Resonance occurs when an object vibrates at or near a certain frequency, causing another object to vibrate.

Front

Explain the concept of sound wave reflection.

Back

Reflection of sound waves occurs when sound waves bounce off a surface, creating echoes.

Front

What is the difference between refraction and diffraction?

Back

Refraction is the bending of waves as they pass from one medium to another, while diffraction is the bending of waves around obstacles.

Front

How does the motion of the source of sound affect the sound perceived by an observer?

Back

The motion of the source of sound can change the frequency and wavelength of the sound waves reaching the observer, leading to the Doppler Effect.