#6 Flashcards
What is the term for waves moving at different velocities but forming a group?
Group velocity
Group velocity refers to the speed at which the overall shape of the waves’ amplitudes (the envelope) moves through space.
What is the relationship between group velocity and particle velocity?
Group velocity = Particle velocity
This indicates that the speed at which the group of waves travels is equal to the speed of the individual particles within that group.
Define ‘constituent waves’.
Waves that combine to form a resultant wave
Constituent waves are the individual waves that interfere with each other to create a new wave pattern.
Fill in the blank: The velocity of the peak of the envelope is related to the _______.
Group velocity
What happens after superimposition of waves?
A new wave pattern is formed
Superimposition refers to the process of combining multiple waves to create a resultant wave.
True or False: The amplitude of a wave is constant across all constituent waves.
False
The amplitude can vary among different constituent waves.
What does the equation w = 2πf represent?
Wave frequency relationship
This equation relates angular frequency (w) to the frequency (f) of the wave.
List the factors that can be linked by varying frequency and wavelength.
- Frequency
- Wavelength
- Wave speed
The relationship between these factors is fundamental in wave mechanics.
Fill in the blank: The envelope of a wave is represented by _______.
Cosine function
The envelope often describes the modulation of the amplitude of the wave.
What is the significance of the term ‘superposition’ in wave theory?
It describes the combination of multiple waves
Superposition is a fundamental principle that explains how waves interact with each other.
What are the properties that can vary among constituent waves?
- Frequency
- Wavelength
- Amplitude
These properties influence how the waves combine and interact.
What is the term for waves moving at different velocities but forming a group?
Group velocity
Group velocity refers to the speed at which the overall shape of the waves’ amplitudes (the envelope) moves through space.
What is the relationship between group velocity and particle velocity?
Group velocity = Particle velocity
This indicates that the speed at which the group of waves travels is equal to the speed of the individual particles within that group.
Define ‘constituent waves’.
Waves that combine to form a resultant wave
Constituent waves are the individual waves that interfere with each other to create a new wave pattern.
Fill in the blank: The velocity of the peak of the envelope is related to the _______.
Group velocity
What happens after superimposition of waves?
A new wave pattern is formed
Superimposition refers to the process of combining multiple waves to create a resultant wave.
True or False: The amplitude of a wave is constant across all constituent waves.
False
The amplitude can vary among different constituent waves.
What does the equation w = 2πf represent?
Wave frequency relationship
This equation relates angular frequency (w) to the frequency (f) of the wave.
List the factors that can be linked by varying frequency and wavelength.
- Frequency
- Wavelength
- Wave speed
The relationship between these factors is fundamental in wave mechanics.
Fill in the blank: The envelope of a wave is represented by _______.
Cosine function
The envelope often describes the modulation of the amplitude of the wave.
What is the significance of the term ‘superposition’ in wave theory?
It describes the combination of multiple waves
Superposition is a fundamental principle that explains how waves interact with each other.
What are the properties that can vary among constituent waves?
- Frequency
- Wavelength
- Amplitude
These properties influence how the waves combine and interact.
